{"@attributes":{"version":"2.0"},"channel":{"title":"\u952e\u843d\u4e91\u8d77","link":"https:\/\/jancat.github.io\/","description":"Recent content on \u952e\u843d\u4e91\u8d77","generator":"Hugo -- gohugo.io","language":"zh","lastBuildDate":"Sun, 09 May 2021 20:48:09 +0800","item":[{"title":"CSS Overflow \u7384\u5b66","link":"https:\/\/jancat.github.io\/post\/2021\/css-overflow-metaphysics\/","pubDate":"Sun, 09 May 2021 20:48:09 +0800","guid":"https:\/\/jancat.github.io\/post\/2021\/css-overflow-metaphysics\/","description":"

\"image-20210509210016035\"<\/p>\n

\u9875\u9762\u7684\u6eda\u52a8\u5e03\u5c40\u8ddf CSS overflow<\/code> \u5c5e\u6027\u7684\u8bbe\u7f6e\u606f\u606f\u76f8\u5173\uff0c\u5173\u7cfb\u5230\u67d0\u5757\u6ea2\u51fa\u5c4f\u5e55\uff08\u5bb9\u5668\uff09\u7684\u5143\u7d20\u90e8\u5206\u80fd\u5426\u6b63\u5e38\u6eda\u52a8\u51fa\u73b0\u5728\u89c6\u53e3\u4e2d\uff0c\u6216\u8005\u76f8\u5bf9\u4e8e\u6839\u5143\u7d20\u5b9a\u4f4d\u7684\u5143\u7d20\u662f\u5426\u5177\u6709\u540c\u6b65\u6eda\u52a8\u7684\u80fd\u529b\u3002overflow \u4ece\u5355\u4e2a\u5143\u7d20\u7684\u89c6\u89d2\u7406\u89e3\u4e0d\u96be\uff0c\u4f46\u662f overflow<\/code> \u7684\u5411\u4e0a\u4f20\u64ad\u7279\u6027\uff0c\u4f7f\u5f97\u5b83\u52a8\u8f84\u5f71\u54cd\u9875\u9762\u5e03\u5c40\uff0c\u6700\u540e\u6eda\u4e0d\u6eda\u5f97\u52a8\u5c31\u4e0d\u597d\u8bf4\u4e86\u3002<\/p>\n

\u672c\u6587\u5c06\u7528\u4e00\u4e2a demo \u6765\u89c2\u6d4b overflow\u3001scroll \u7684\u5177\u4f53\u8868\u73b0\u3002<\/p>\n

overflow \u76f8\u5173\u5c5e\u6027<\/h2>\n

\u8ddf overflow<\/code> \u76f8\u5173\u7684\u5143\u7d20\u5c5e\u6027\u6709 offsetHeight<\/code>\u3001clientHeight<\/code>\u3001 scrollHeight<\/code>\u3001scrollTop<\/code> \uff0c\u5b83\u4eec\u7684\u8ba1\u7b97\u65b9\u5f0f\u4e3a\uff1a<\/p>\n

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1\n<\/span>2\n<\/span>3\n<\/span>4\n<\/span>5\n<\/span>6\n<\/span>7\n<\/span>8\n<\/span><\/code><\/pre><\/td>\n
\n
\/\/ \u5143\u7d20\u5185\u90e8\u5c3a\u5bf8\n<\/span><\/span>clientHeight<\/span> =<\/span> content<\/span> height<\/span> +<\/span> padding<\/span>\n\/\/ \u5143\u7d20\u5e03\u5c40\u5c3a\u5bf8\n<\/span><\/span>offsetHeight<\/span> =<\/span> content<\/span> height<\/span> +<\/span> border<\/span> +<\/span> padding<\/span> +<\/span> scroll<\/span> bar<\/span>\n\/\/ \u5143\u7d20\u5185\u5bb9\u5c3a\u5bf8\n<\/span><\/span>scrollHeight<\/span> =<\/span> content<\/span> height<\/span> +<\/span> padding<\/span> +<\/span> pseudo<\/span> element<\/span> +<\/span> overflow<\/span>\n\/\/ \u5143\u7d20\u5782\u76f4\u6eda\u52a8\u8ddd\u79bb\n<\/span><\/span>scrollTop<\/span> =<\/span> \u5b50\u5143\u7d20\u9876\u90e8\u8ddd\u79bb\u53ef\u89c6\u5185\u5bb9\u9876\u90e8\u7684\u9ad8\u5ea6<\/span>\uff08<\/span>\u975e\u6eda\u52a8\u5143\u7d20<\/span> scrollTop<\/span> \u4e3a<\/span> 0<\/span>\uff09<\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
scrollHeight<\/code> \u76f8\u6bd4 offsetHeight<\/code> \uff0c\u5305\u542b\u4e86\u5b50\u5143\u7d20\u6ea2\u51fa\u7684\u9ad8\u5ea6\u3002<\/p>\n
demo \u4e2d\u4f1a\u89c2\u5bdf\u6bcf\u4e2a\u5143\u7d20\u7684\u8fd9\u51e0\u4e2a\u503c\uff08\u6700\u65b0\u7248 Chrome \u4e0b\u6d4b\u8bd5 \uff09\uff0c\u7384\u5b66\u8fd8\u5f97\u7528\u56fe\u548c\u6570\u636e\u8bf4\u8bdd\u3002<\/p>\n
overflow demo<\/h2>\n
demo \u6700\u5f00\u59cb\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
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 1\n<\/span> 2\n<\/span> 3\n<\/span> 4\n<\/span> 5\n<\/span> 6\n<\/span> 7\n<\/span> 8\n<\/span> 9\n<\/span>10\n<\/span>11\n<\/span>12\n<\/span>13\n<\/span>14\n<\/span>15\n<\/span>16\n<\/span><\/code><\/pre><\/td>\n
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<<\/span>style<\/span>><\/span>\n  .<\/span>container<\/span> {<\/span>\n\t\tborder<\/span>:<\/span> 10<\/span>px<\/span> solid<\/span> Teal<\/span>;<\/span>\n  }<\/span>\n\n  .<\/span>content<\/span> {<\/span>\n    height<\/span>:<\/span> 500<\/span>px<\/span>;<\/span>\n    background<\/span>:<\/span> LightSeaGreen<\/span>;<\/span>\n  }<\/span>\n<\/<\/span>style<\/span>><\/span>\n\n<<\/span>body<\/span>><\/span>\n  <<\/span>container<\/span> class<\/span>=<\/span>"container"<\/span>><\/span>\n  \t<<\/span>content<\/span> class<\/span>=<\/span>"content"<\/span>><\/<\/span>content<\/span>><\/span>\n  <\/<\/span>container<\/span>><\/span>\n<\/<\/span>body<\/span>><\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u5f53\u5bb9\u5668\u5143\u7d20 container<\/code> \u6ca1\u6709\u8bbe\u7f6e height<\/code> \u65f6\uff0c\u5b50\u5143\u7d20 content<\/code> \u7684\u9ad8\u5ea6 height: 500px<\/code> \u81ea\u52a8\u6491\u5f00\u7236\u5143\u7d20\uff0ccontainer<\/code> \u9ad8\u5ea6\uff08offsetHeight<\/code>\uff09\u6b64\u65f6\u4e3a content<\/code> \u7684\u9ad8\u5ea6 + container<\/code>\u6c34\u5e73 border \u9ad8\u5ea6 = 520px<\/p>\n
<\/p>\n\n\n\n\n\n\n
\u5143\u7d20\/\u9ad8\u5ea6(px)<\/th>\noffsetHeight<\/th>\nscrollHeight<\/th>\nscrollTop<\/th>\n<\/tr>\n<\/thead>\n
container<\/td>\n520<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
content<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u7236\u5143\u7d20\u56fa\u5b9a\u9ad8\u5ea6<\/h3>\n
\u5728\u4e0a\u9762 demo \u7684\u57fa\u7840\u4e0a\u505a\u4e9b\u6539\u52a8\uff1a<\/p>\n
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 1\n<\/span> 2\n<\/span> 3\n<\/span> 4\n<\/span> 5\n<\/span> 6\n<\/span> 7\n<\/span> 8\n<\/span> 9\n<\/span>10\n<\/span>11\n<\/span>12\n<\/span>13\n<\/span>14\n<\/span>15\n<\/span>16\n<\/span>17\n<\/span>18\n<\/span>19\n<\/span>20\n<\/span>21\n<\/span>22\n<\/span><\/code><\/pre><\/td>\n
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<<\/span>style<\/span>><\/span>\n  .<\/span>container<\/span> {<\/span>\n\t\tborder<\/span>:<\/span> 10<\/span>px<\/span> solid<\/span> Teal<\/span>;<\/span>\n    height<\/span>:<\/span> 300<\/span>px<\/span>;<\/span>\n  }<\/span>\n\n  .<\/span>content<\/span> {<\/span>\n    height<\/span>:<\/span> 500<\/span>px<\/span>;<\/span>\n    background<\/span>:<\/span> LightSeaGreen<\/span>;<\/span>\n  }<\/span>\n<\/<\/span>style<\/span>><\/span>\n\n<<\/span>body<\/span>><\/span>\n  <<\/span>container<\/span> class<\/span>=<\/span>"container"<\/span>><\/span>\n  \t<<\/span>content<\/span> class<\/span>=<\/span>"content"<\/span>><\/span>\n    \toverflow content\n    <\/<\/span>content<\/span>><\/span>\n  <\/<\/span>container<\/span>><\/span>\n  <<\/span>p<\/span>><\/span>\n    behind element\n  <\/<\/span>p<\/span>><\/span>\n<\/<\/span>body<\/span>><\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u5f53\u8bbe\u7f6e\u4e86 container<\/code> height: 300px;<\/code> \u540e\uff0ccontent<\/code> \u9ad8\u5ea6\u6ea2\u51fa\uff0c\u56e0\u4e3a\u7236\u5143\u7d20\u9ed8\u8ba4\u6ea2\u51fa\u4e0d\u88c1\u526a\uff08overflow: visible<\/code>\uff09\uff0c\u53ef\u4ee5\u770b\u5230 content<\/code> \u6ea2\u51fa\u7684\u90e8\u5206\u8986\u76d6\u4e86 container<\/code> \u7684 bottom border\uff0c\u5e76\u4e14  content<\/code> \u6ea2\u51fa\u5185\u5bb9\u76f4\u63a5\u8986\u76d6\u5728\u4e86 container<\/code> \u76f8\u90bb\u7684 behind \u5143\u7d20\u4e0a\uff08\u89c1 overflow content<\/strong>\uff09\uff0c\u4f46 content<\/code> \u7684 background<\/code> \u5c42\u53e0\u7b49\u7ea7\u5c0f\u4e8e behind \u5143\u7d20\u7684 background<\/code>\uff0c\u6240\u4ee5 behind \u5143\u7d20\u7684 background<\/code> \u5728\u4e0a\u9762\uff08\u7384\u4e0d\u7384\uff09\u3002<\/p>\n
\"\"<\/p>\n
\u6240\u4ee5\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6ea2\u51fa\u7684\u5185\u5bb9\u4e0d\u4f1a\u5f71\u54cd\u6b63\u5e38\u7684\u6587\u6863\u6d41\uff0c\u76f4\u63a5\u8986\u76d6\u5728\u7236\u5143\u7d20\u540e\u9762\u7684\u5143\u7d20\u4e0a\uff0c\u53ef\u80fd\u5f71\u54cd\u6b63\u5e38\u9875\u9762\u4fe1\u606f\u7684\u83b7\u53d6\u3002<\/p>\n
\u6b64\u65f6 container<\/code> \u548c content<\/code> \u5143\u7d20\u7684 scrollHeight<\/code> \u90fd\u4e3a 500 px\uff0c\u56e0\u4e3a\u7236\u5143\u7d20\u7684 scrollHeight<\/code> \u4f1a\u5305\u542b\u5b50\u5143\u7d20\u7684\u6ea2\u51fa\u90e8\u5206\uff0c\u4f46\u4e0d\u5305\u542b border\uff1a<\/p>\n\n\n\n\n\n\n
\u5143\u7d20\/\u9ad8\u5ea6(px)<\/th>\noffsetHeight<\/th>\nscrollHeight<\/th>\nscrollTop<\/th>\n<\/tr>\n<\/thead>\n
container<\/td>\n320<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
content<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u7236\u5143\u7d20 overflow: auto<\/h3>\n
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1\n<\/span>2\n<\/span>3\n<\/span>4\n<\/span>5\n<\/span>6\n<\/span>7\n<\/span><\/code><\/pre><\/td>\n
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<<\/span>style<\/span>><\/span>\n  .<\/span>container<\/span> {<\/span>\n\t\tborder<\/span>:<\/span> 10<\/span>px<\/span> solid<\/span> Teal<\/span>;<\/span>\n    height<\/span>:<\/span> 300<\/span>px<\/span>;<\/span>\n    overflow<\/span>:<\/span> auto<\/span>;<\/span> \/* add it *\/<\/span>\n  }<\/span>\n<\/<\/span>style<\/span>><\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u8bbe\u7f6e container<\/code> overflow: auto<\/code>\uff0c\u8ba9 content<\/code> \u6ea2\u51fa\u7684\u5185\u5bb9\u9690\u85cf\uff0c\u53ef\u89c6\u533a\u57df<\/strong>\u4e3a\u7236\u5143\u7d20\u7684 padding area\uff08height 300 px\uff09\uff0c\u7236\u5143\u7d20\u5f00\u542f\u6eda\u52a8\uff0c\u53ef\u89c6\u533a\u57df\u51fa\u73b0\u5782\u76f4\u6eda\u52a8\u6761\u3002<\/p>\n
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\u5728 Mac \u7cfb\u7edf\u4e2d\uff0c\u9875\u9762\u4e2d\u51fa\u73b0\u7684\u6eda\u52a8\u6761\u662f\u60ac\u6d6e\u8986\u76d6\u5728\u5143\u7d20\u4e0a\uff0c\u4e0d\u5360\u7528\u6eda\u52a8\u5143\u7d20\u7684\u5bbd\u5ea6\uff0c\u5373 scrollElement.offsetWidth<\/code> \u4e2d\u5305\u542b\u7684\u6eda\u52a8\u6761\u5bbd\u5ea6\u4e3a 0\u3002<\/p>\n<\/blockquote>\n
\"\"<\/p>\n
\u5f53 container<\/code> \u6eda\u52a8\u5230\u5e95\u90e8\uff0ccontainer.scrollTop<\/code> \u6eda\u52a8\u7684\u503c\u4e3a content<\/code> \u9876\u90e8\uff08\u4e0d\u53ef\u89c1\uff09\u5230 container<\/code> \u53ef\u89c6\u533a\u57df<\/strong> \u9876\u90e8\u7684\u8ddd\u79bb\uff0ccontent<\/code> \u7684\u9ad8\u5ea6 500 px \u5728\u53ef\u89c6\u533a\u57df\u663e\u793a\u5b8c 300 px \u540e\uff0c\u6eda\u52a8\u5230\u4e0a\u9762\u5269\u4e0b\u7684\u4e0d\u53ef\u89c1\u533a\u57df\u9ad8\u5ea6\u4e3a 200px\uff0c\u5373\u7b49\u4e8e container<\/code> \u7684\u6eda\u52a8\u8ddd\u79bb scrollTop<\/code> 200 px\u3002cotainer<\/code> \u53ef\u89c6\u533a\u57df\u7684\u9ad8\u5ea6\u4e3a clientHeight<\/code> \uff08\u4e0d\u5305\u62ec border\u3001\u6ea2\u51fa\uff09300 px\u3002<\/p>\n
\u4e0b\u9762\u7684\u7b49\u5f0f\u53ef\u4ee5\u7528\u6765\u5224\u65ad container<\/code> \u662f\u5426\u5782\u76f4\u6eda\u52a8\u5230\u6700\u5e95\u90e8\uff1a<\/p>\n
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1\n<\/span><\/code><\/pre><\/td>\n
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container<\/span>.<\/span>scrollTop<\/span> +<\/span> container<\/span>.<\/span>clientHeight<\/span> ==<\/span> container<\/span>.<\/span>scrollHeight<\/span> ==<\/span> content<\/span>.<\/span>offsetHeight<\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u7531\u4e8e content<\/code> \u4e0d\u662f\u53ef\u6eda\u52a8\u5143\u7d20\uff08content<\/code> \u5b50\u5143\u7d20\u6ca1\u6709\u6ea2\u51fa\uff09\uff0c\u6240\u4ee5\u5728 container<\/code> \u6eda\u52a8\u8fc7\u7a0b\u4e2d\uff0ccontent.scrollTop<\/code> \u59cb\u7ec8\u4e3a 0\u3002<\/p>\n\n\n\n\n\n\n
\u5143\u7d20\/\u9ad8\u5ea6(px)<\/th>\noffsetHeight<\/th>\nscrollHeight<\/th>\nscrollTop<\/th>\n<\/tr>\n<\/thead>\n
container<\/td>\n320<\/td>\n500<\/td>\n200<\/td>\n<\/tr>\n
content<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u7236\u5143\u7d20 overflow: hidden<\/h3>\n
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1\n<\/span>2\n<\/span>3\n<\/span>4\n<\/span>5\n<\/span>6\n<\/span>7\n<\/span><\/code><\/pre><\/td>\n
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<<\/span>style<\/span>><\/span>\n  .<\/span>container<\/span> {<\/span>\n\t\tborder<\/span>:<\/span> 10<\/span>px<\/span> solid<\/span> Teal<\/span>;<\/span>\n    height<\/span>:<\/span> 300<\/span>px<\/span>;<\/span>\n    overflow<\/span>:<\/span> hidden<\/span>;<\/span> \/* add it *\/<\/span>\n  }<\/span>\n<\/<\/span>style<\/span>><\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u8bbe\u7f6e container<\/code> overflow: hidden<\/code> \u540e\uff0ccontent<\/code> \u6ea2\u51fa\u7684\u5185\u5bb9\u88ab\u88c1\u526a\u9690\u85cf\uff0c\u65e0\u6cd5\u901a\u8fc7\u524d\u7aef\u4ea4\u4e92\u65b9\u5f0f\u6eda\u52a8\u5143\u7d20\uff0c\u4f46\u4ecd\u7136\u53ef\u4ee5\u7528 JS \u63a7\u5236 container<\/code> \u7684\u6eda\u52a8\u4f4d\u7f6e\uff1a<\/p>\n
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1\n<\/span>2\n<\/span><\/code><\/pre><\/td>\n
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container<\/span>.<\/span>scrollTo<\/span>(<\/span>0<\/span>,<\/span> 100<\/span>)<\/span>\ncontainer<\/span>.<\/span>scrollTop<\/span> =<\/span> 100<\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\"\"<\/p>\n
\u6b64\u65f6 content<\/code> \u6ea2\u51fa\u5185\u5bb9\u867d\u7136\u88ab\u88c1\u526a\uff0c\u4f46\u4e0d\u5f71\u54cd container.scrollHeight<\/code> \u7684\u503c\uff08500 px\uff09\uff0c\u56e0\u4e3a\u8fd8\u5b58\u5728\u6ea2\u51fa.<\/p>\n\n\n\n\n\n\n
\u5143\u7d20\/\u9ad8\u5ea6(px)<\/th>\noffsetHeight<\/th>\nscrollHeight<\/th>\nscrollTop<\/th>\n<\/tr>\n<\/thead>\n
container<\/td>\n320<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
content<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u9875\u9762\u5bb9\u5668\u5e03\u5c40<\/h2>\n
\u5f53\u521b\u5efa\u9875\u9762\u5bb9\u5668\u5e03\u5c40\u65f6\uff0c\u5bb9\u5668\u5143\u7d20 overflow<\/code> \u7684\u8bbe\u7f6e\u4f1a\u5f71\u54cd\u5230\u9876\u7ea7\u5143\u7d20\uff08html<\/code>\u3001body<\/code>\u3001root<\/code>\uff09\u7684\u6eda\u52a8\u533a\u57df\u3002<\/p>\n
\u5047\u8bbe\u9875\u9762\u7a97\u53e3\u7684\u89c6\u53e3\u9ad8\u5ea6\u4e3a 400 px\uff0croot<\/code> \u6839\u5143\u7d20\u9ad8\u5ea6\u6491\u6ee1\u89c6\u53e3\u9ad8\u5ea6\uff08height: 100%<\/code>\uff09\uff1a<\/p>\n
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 1\n<\/span> 2\n<\/span> 3\n<\/span> 4\n<\/span> 5\n<\/span> 6\n<\/span> 7\n<\/span> 8\n<\/span> 9\n<\/span>10\n<\/span>11\n<\/span>12\n<\/span>13\n<\/span>14\n<\/span>15\n<\/span>16\n<\/span>17\n<\/span>18\n<\/span>19\n<\/span>20\n<\/span>21\n<\/span>22\n<\/span>23\n<\/span>24\n<\/span>25\n<\/span>26\n<\/span><\/code><\/pre><\/td>\n
\n
<<\/span>style<\/span>><\/span>\n  html<\/span>,<\/span> body<\/span>,<\/span> .<\/span>root<\/span> {<\/span>\n    height<\/span>:<\/span> 100<\/span>%<\/span>;<\/span>\n  }<\/span>\n\n  .<\/span>container<\/span> {<\/span>\n\t\tborder<\/span>:<\/span> 10<\/span>px<\/span> solid<\/span> Teal<\/span>;<\/span>\n    height<\/span>:<\/span> 300<\/span>px<\/span>;<\/span>\n    overflow<\/span>:<\/span> hidden<\/span>;<\/span>\n  }<\/span>\n\n  .<\/span>content<\/span> {<\/span>\n    height<\/span>:<\/span> 500<\/span>px<\/span>;<\/span>\n    background<\/span>:<\/span> LightSeaGreen<\/span>;<\/span>\n  }<\/span>\n<\/<\/span>style<\/span>><\/span>\n\n<<\/span>body<\/span>><\/span>\n  <<\/span>root<\/span> class<\/span>=<\/span>"root"<\/span>><\/span>\n    <<\/span>container<\/span> class<\/span>=<\/span>"container"<\/span>><\/span>\n      <<\/span>content<\/span> class<\/span>=<\/span>"content"<\/span>><\/span>\n        overflow content\n      <\/<\/span>content<\/span>><\/span>\n    <\/<\/span>container<\/span>><\/span>\n\t<\/<\/span>root<\/span>><\/span>\n<\/<\/span>body<\/span>><\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\"\"<\/p>\n
container<\/code> \u4e0d\u7ba1\u8bbe\u7f6e overflow: auto<\/code> \u8fd8\u662f overflow: hidden<\/code> \uff0ccontainer<\/code> \u662f\u5426\u6eda\u52a8\u4e0d\u5f71\u54cd container<\/code> \u672c\u8eab\u7684\u9ad8\u5ea6\u6ca1\u6709\u6ea2\u51fa root<\/code> \u8fd9\u4e2a\u4e8b\u5b9e\uff0c  \u6240\u4ee5 root<\/code> \u7684 scrollHeight<\/code> \u4e0d\u5305\u542b content<\/code> \u7684\u6ea2\u51fa\u5185\u5bb9\uff0c\u8fd8\u662f\u7b49\u4e8e\u81ea\u8eab\u9ad8\u5ea6\uff08 root.scrollHeight == root.offsetHeight == 400px<\/code>\uff09\u3002<\/p>\n\n\n\n\n\n\n\n\n\n
\u5143\u7d20\/\u9ad8\u5ea6(px)<\/th>\noffsetHeight<\/th>\nscrollHeight<\/th>\nscrollTop<\/th>\n<\/tr>\n<\/thead>\n
html<\/td>\n400<\/td>\n400<\/td>\n0<\/td>\n<\/tr>\n
body<\/td>\n400<\/td>\n400<\/td>\n0<\/td>\n<\/tr>\n
root<\/td>\n400<\/td>\n400<\/td>\n0<\/td>\n<\/tr>\n
container<\/td>\n300<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
content<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u540c\u6837\u5730\uff0ccontainer<\/code> \u8bbe\u7f6e height: 100%; overflow: auto<\/code> \u540e\uff0c\u5373\u4f7f\u4ece\u89c6\u89c9\u4e0a\u770b\u6574\u4e2a\u9875\u9762\u90fd\u6eda\u52a8\u4e86\uff0c\u4f46root.scrollHeight<\/code> \u8fd8\u662f 400 px\uff0c\u6eda\u52a8\u53ea\u662f\u53d1\u751f\u5728 container<\/code> \u5143\u7d20\u4e0a\u3002<\/p>\n
\n
\n
 1\n<\/span> 2\n<\/span> 3\n<\/span> 4\n<\/span> 5\n<\/span> 6\n<\/span> 7\n<\/span> 8\n<\/span> 9\n<\/span>10\n<\/span>11\n<\/span>12\n<\/span>13\n<\/span>14\n<\/span>15\n<\/span><\/code><\/pre><\/td>\n
\n
<<\/span>style<\/span>><\/span>\n  html<\/span>,<\/span> body<\/span>,<\/span> .<\/span>root<\/span> {<\/span>\n    height<\/span>:<\/span> 100<\/span>%<\/span>;<\/span>\n  }<\/span>\n\n  .<\/span>container<\/span> {<\/span>\n    height<\/span>:<\/span> 100<\/span>%<\/span>;<\/span>\n    overflow<\/span>:<\/span> auto<\/span>;<\/span>\n  }<\/span>\n\n  .<\/span>content<\/span> {<\/span>\n    height<\/span>:<\/span> 500<\/span>px<\/span>;<\/span>\n    background<\/span>:<\/span> LightSeaGreen<\/span>;<\/span>\n  }<\/span>\n<\/<\/span>style<\/span>><\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\"\"<\/p>\n\n\n\n\n\n\n\n\n\n
\u5143\u7d20\/\u9ad8\u5ea6(px)<\/th>\noffsetHeight<\/th>\nscrollHeight<\/th>\nscrollTop<\/th>\n<\/tr>\n<\/thead>\n
html<\/td>\n400<\/td>\n400<\/td>\n0<\/td>\n<\/tr>\n
body<\/td>\n400<\/td>\n400<\/td>\n0<\/td>\n<\/tr>\n
root<\/td>\n400<\/td>\n400<\/td>\n0<\/td>\n<\/tr>\n
container<\/td>\n400<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
content<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u89e6\u53d1\u60ac\u6d6e<\/h3>\n
\u5982\u679c\u6709\u60ac\u6d6e\u5143\u7d20\u548c\u89e6\u53d1\u5143\u7d20\u662f\u76f8\u5bf9\u4e8e html<\/code> \u5143\u7d20\u6765\u5b9a\u4f4d\u504f\u79fb\u8ddd\u79bb\u7684\uff08\u6bd4\u5982\u60ac\u6d6e\u63d0\u793a\u3001\u4e0b\u62c9\u83dc\u5355\uff09\uff0c\u5f53\u60ac\u6d6e\u5143\u7d20\u521d\u6b21\u51fa\u73b0\u5728\u89e6\u53d1\u5143\u7d20\u65c1\u8fb9\u540e\uff0c\u89e6\u53d1\u5143\u7d20\u5728 container<\/code> \u4e2d\u6eda\u52a8\u65f6\uff0c\u5047\u5982\u6ca1\u6709\u52a8\u6001\u7684\u8c03\u6574\u60ac\u6d6e\u5143\u7d20\u7684\u76f8\u5e94\u504f\u79fb\u8ddd\u79bb\uff0c\u60ac\u6d6e\u5c42\u5c31\u4f1a\u9759\u6b62\u5728\u6700\u5f00\u59cb\u51fa\u73b0\u7684\u4f4d\u7f6e\uff0c\u6ca1\u6709\u8ddf\u968f\u89e6\u53d1\u5143\u7d20\u6eda\u52a8\uff0c\u9020\u6210\u89c6\u89c9\u4e0a\u7684\u5206\u79bb\uff0c\u663e\u5f97\u7a81\u5140\u3002\uff08\u5f53\u7136\u5982\u679c\u8bbe\u8ba1\u6210\u6eda\u52a8\u65f6\u5173\u95ed\u60ac\u6d6e\u5143\u7d20\uff0c\u90a3\u81ea\u7136\u5c31\u6ca1\u6709\u8fd9\u4e2a\u95ee\u9898\uff09<\/p>\n
\"\"<\/p>\n
\u4e0a\u56fe\u4e2d\uff0c\u5f53\u6307\u9488\u60ac\u6d6e\u5728\u89e6\u53d1\u5143\u7d20 trigger<\/code> \u5143\u7d20\u4e0a\u65f6\uff0c\u4f1a\u8ba1\u7b97 trigger<\/code> \u5728\u89c6\u53e3\u4e2d\u7684\u4f4d\u7f6e\u548c\u6eda\u52a8\u8ddd\u79bb\uff1a<\/p>\n
\n
\n
1\n<\/span>2\n<\/span><\/code><\/pre><\/td>\n
\n
triggerOffsetX<\/span> =<\/span> trigger<\/span>.<\/span>getBoundingClientRect<\/span>().<\/span>left<\/span>\ntriggerOffsetY<\/span> =<\/span> trigger<\/span>.<\/span>getBoundingClientRect<\/span>().<\/span>top<\/span> +<\/span> window<\/span>.<\/span>pageYOffset<\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u60ac\u6d6e\u5143\u7d20 Popover<\/code> \u6839\u636e triggerOffsetX<\/code>\u3001triggerOffsetY<\/code> \u548c\u81ea\u8eab\u5c3a\u5bf8\u8ba1\u7b97\u76f8\u5bf9\u4e8e html<\/code> \u7684\u504f\u79fb\u8ddd\u79bb\uff1a<\/p>\n
\n
\n
1\n<\/span>2\n<\/span><\/code><\/pre><\/td>\n
\n
PopoverOffsetLeft<\/span> =<\/span> triggerOffsetX<\/span> -<\/span> Popover<\/span>.<\/span>offsetWidth<\/span> \/<\/span> 2<\/span>\nPopoverOffsetTop<\/span> =<\/span> triggerOffsetY<\/span> -<\/span> Popover<\/span>.<\/span>offsetHeight<\/span> -<\/span> gap<\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u70b9 (PopoverOffsetLeft, PopoverOffsetTop)<\/code> \u5c31\u662f Popover<\/code> \u7684\u5de6\u4e0a\u89d2\u5750\u6807\uff1a<\/p>\n
\n
\n
1\n<\/span>2\n<\/span>3\n<\/span>4\n<\/span>5\n<\/span>6\n<\/span>7\n<\/span>8\n<\/span>9\n<\/span><\/code><\/pre><\/td>\n
\n
body<\/span> {<\/span>\n  position<\/span>:<\/span> relative<\/span>;<\/span>\n}<\/span>\n\n.<\/span>Popover<\/span> {<\/span>\n\tposition<\/span>:<\/span> absolute<\/span>;<\/span>\n\tleft<\/span>:<\/span> PopoverOffsetLeft<\/span>;<\/span>\n  top<\/span>:<\/span> PopoverOffsetTop<\/span>;<\/span>\n}<\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u5f53 trigger<\/code> \u5728 container<\/code> \u4e2d\u6eda\u52a8\u65f6\uff0cPopover<\/code> \u8fd8\u662f\u60ac\u6d6e\u5728\u539f\u6765\u90a3\u4e2a\u4f4d\u7f6e\u9759\u6b62\uff0c\u6eda\u52a8\u5e76\u6ca1\u6709\u4f5c\u7528\u5728 Popover <\/code> \u4e0a\uff08Popover<\/code> \u76f8\u5bf9\u4e8e body<\/code> \uff09\uff0ctrigger<\/code> \u548c Popover<\/code> \u51fa\u73b0\u5206\u79bb\uff1a<\/p>\n
\"\"<\/p>\n
html \u6ea2\u51fa<\/h3>\n
\n
\n
 1\n<\/span> 2\n<\/span> 3\n<\/span> 4\n<\/span> 5\n<\/span> 6\n<\/span> 7\n<\/span> 8\n<\/span> 9\n<\/span>10\n<\/span>11\n<\/span>12\n<\/span>13\n<\/span>14\n<\/span>15\n<\/span><\/code><\/pre><\/td>\n
\n
<<\/span>style<\/span>><\/span>\n  html<\/span>,<\/span> body<\/span>,<\/span> .<\/span>root<\/span> {<\/span>\n    height<\/span>:<\/span> 100<\/span>%<\/span>;<\/span>\n  }<\/span>\n\n  .<\/span>container<\/span> {<\/span>\n    height<\/span>:<\/span> 100<\/span>%<\/span>;<\/span>\n    \/* overflow: auto; *\/<\/span>\n  }<\/span>\n\n  .<\/span>content<\/span> {<\/span>\n    height<\/span>:<\/span> 500<\/span>px<\/span>;<\/span>\n    background<\/span>:<\/span> LightSeaGreen<\/span>;<\/span>\n  }<\/span>\n<\/<\/span>style<\/span>><\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
container<\/code> \u5220\u9664 overflow:auto<\/code> \u540e\uff0c\u6ea2\u51fa\u7684 content<\/code> \u8d85\u51fa\u4e86 cotainer\u3001root\u3001body\u3001html<\/code> \u5bf9\u5e94\u7684\u89c6\u53e3\u9ad8\u5ea6\uff08height: 100%<\/code>\uff09\uff0c\u6700\u7ec8\u5728 html<\/code> \u5143\u7d20\u4e0a\u89e6\u53d1\u4e86\u6ea2\u51fa\u6eda\u52a8\uff0chtml<\/code> \u4f5c\u4e3a\u6700\u7ec8\u7684\u6eda\u52a8\u533a\u57df\uff0c\u6eda\u52a8\u533a\u57df\u9ad8\u5ea6\u8ddf content<\/code> \u7684\u9ad8\u5ea6\u4e00\u81f4\uff0c\u6240\u4ee5 Popover<\/code> \u76f8\u5bf9\u4e8e html<\/code> \u5143\u7d20\u5728\u6eda\u52a8\u533a\u57df\u504f\u79fb\u5b9a\u4f4d\u5230 trigger<\/code> \u65c1\u8fb9\u540e\uff0cPopover<\/code> \u4f1a\u8ddf\u968f trigger<\/code> \u5728\u6eda\u52a8\u533a\u57df\u6eda\u52a8\uff0c\u4fdd\u6301\u76f8\u5bf9\u9759\u6b62\uff1a<\/p>\n
\"\"<\/p>\n
\u6eda\u52a8\u5230\u5e95\u90e8\u540e\uff0chtml.scrollTop<\/code> \u6b63\u597d\u662f content.offsetHeight<\/code> \u548c html.offsetHeight<\/code> \u7684\u9ad8\u5ea6\u5dee 100 px\u3002<\/p>\n\n\n\n\n\n\n\n\n\n
\u5143\u7d20\/\u9ad8\u5ea6(px)<\/th>\noffsetHeight<\/th>\nscrollHeight<\/th>\nscrollTop<\/th>\n<\/tr>\n<\/thead>\n
html<\/td>\n400<\/td>\n500<\/td>\n100<\/td>\n<\/tr>\n
body<\/td>\n400<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
root<\/td>\n400<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
container<\/td>\n400<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
content<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
html \u65e0\u56fa\u5b9a\u9ad8\u5ea6<\/h3>\n
\u5982\u679c\u628a html \u7684 height: 100%<\/code> \u53bb\u6389\uff1a<\/p>\n
\n
\n
1\n<\/span>2\n<\/span>3\n<\/span>4\n<\/span>5\n<\/span>6\n<\/span>7\n<\/span><\/code><\/pre><\/td>\n
\n
html<\/span> {<\/span>\n  \/* height: 100%; *\/<\/span>\n}<\/span>\n\nbody<\/span>,<\/span> root<\/span>,<\/span> container<\/span> {<\/span>\n\theight<\/span>:<\/span> 100<\/span>%<\/span>;<\/span>\n}<\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u6b64\u65f6 html<\/code> \u4e0d\u518d\u9650\u5236\u4e3a\u89c6\u53e3\u7684\u9ad8\u5ea6\uff0c body, root, container { height: 100% }<\/code> \u7684\u9ad8\u5ea6\u767e\u5206\u6bd4\u6ca1\u6709\u4e86\u76f8\u5bf9\u8ba1\u7b97\u7684\u503c\uff0c\u9000\u5316\u4e3a heigth: auto<\/code>\uff0c\u7531\u5b50\u5143\u7d20\u5185\u5bb9\u9ad8\u5ea6\u51b3\u5b9a\uff0c content<\/code> \u7684\u56fa\u5b9a\u9ad8\u5ea6\u5c42\u5c42\u5411\u4e0a\u6491\u5f00\u4e86 html<\/code> \u7684\u9ad8\u5ea6\uff0chtml<\/code> \u7684\u9ad8\u5ea6\u6b64\u65f6\u8ddf content<\/code> \u7684\u9ad8\u5ea6\u4e00\u81f4\uff0chtml<\/code> \u4e0b\u6ca1\u6709\u53d1\u751f\u9ad8\u5ea6\u6ea2\u51fa\uff0c\u89c6\u53e3\u6210\u4e3a\u6eda\u52a8\u533a\u57df\uff0c\u4f46\u662f\u53ef\u4ee5\u5728 html<\/code> \u4e2d\u63a7\u5236\u6eda\u52a8\u3002<\/p>\n
\"\"<\/p>\n\n\n\n\n\n\n\n\n\n
\u5143\u7d20\/\u9ad8\u5ea6(px)<\/th>\noffsetHeight<\/th>\nscrollHeight<\/th>\nscrollTop<\/th>\n<\/tr>\n<\/thead>\n
html<\/td>\n500<\/td>\n500<\/td>\n100<\/td>\n<\/tr>\n
body<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
root<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
container<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n
content<\/td>\n500<\/td>\n500<\/td>\n0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u8bbe\u7f6e html { min-height: 100%; }<\/code> \u3001html { min-height: 100vh; }<\/code> \u4e5f\u662f\u540c\u6837\u7684\u6548\u679c\uff0c\u53ea\u8981 html<\/code> \u7684\u9ad8\u5ea6\u4e0d\u56fa\u5b9a\uff0c\u5c31\u4f1a\u88ab\u5b50\u5143\u7d20\u9ad8\u5ea6\u6491\u5f00\u3002<\/p>\n
\u7ed3\u8bba<\/h3>\n
\u6240\u4ee5\u5982\u679c\u8981\u907f\u514d\u4e0a\u9762\u60ac\u6d6e\u5143\u7d20\u4e0d\u8ddf\u968f\u6eda\u52a8\u7684\u95ee\u9898\uff0c\u4e0d\u80fd\u5728\u67d0\u4e2a\u5bb9\u5668\u5143\u7d20\u4e0a\u8bbe\u7f6e overflow: auto<\/code>\u3001overflow: hidden<\/code> \uff0c\u9700\u8981\u8ba9\u5b50\u5143\u7d20\u6ea2\u51fa\u5c4f\u5e55\u9ad8\u5ea6\u7684\u90e8\u5206\u5411\u4e0a\u4f20\u64ad\uff0c\u6491\u5f00 html<\/code>\u3001body<\/code> \u7684\u9ad8\u5ea6\uff0c\u8ba9 html<\/code>\u3001body<\/code> \u7684\u6eda\u52a8\u533a\u57df\u9ad8\u5ea6\u8ddf content<\/code>\uff08\u957f\u5143\u7d20<\/strong>\uff09\u9ad8\u5ea6\u4e00\u81f4\uff0c\u5373\u60ac\u6d6e\u5143\u7d20\u8ddf\u89e6\u53d1\u5143\u7d20\u7684\u6eda\u52a8\u80cc\u666f\u91cd\u53e0\uff0c\u4fdd\u8bc1\u540c\u6b65\u6eda\u52a8\u3002<\/p>\n
\u5176\u5b9e\u8ba9\u60ac\u6d6e\u5143\u7d20\u8ddf\u968f\u6eda\u52a8\u8fd8\u6709\u53e6\u4e00\u79cd\u601d\u8def\uff0c html<\/code>\u3001body<\/code> \u4f5c\u4e3a\u60ac\u6d6e\u5143\u7d20\u5b9a\u4f4d\u7684\u53c2\u8003\u5143\u7d20\u53ea\u662f\u901a\u7528\u65b9\u6848\uff0c\u60ac\u6d6e\u5143\u7d20\u4e5f\u53ef\u4ee5\u76f4\u63a5\u6302\u8f7d\u5230\u957f\u5143\u7d20\u4e0b\uff0c\u8ddf\u89e6\u53d1\u5143\u7d20\u5904\u4e8e\u540c\u4e00\u6eda\u52a8\u533a\u57df\uff0c\u81ea\u7136\u5c31\u80fd\u5728\u6eda\u52a8\u65f6\u4fdd\u6301\u76f8\u5bf9\u9759\u6b62\u3002\u901a\u5e38\u7ec4\u4ef6\u5e93\u4e2d\u7684\u60ac\u6d6e\u5c42\u90fd\u4f1a\u63d0\u4f9b\u81ea\u5b9a\u4e49\u6302\u8f7d\u70b9\u7684 API\uff0c\u5c31\u662f\u7528\u6765\u7ed5\u8fc7 body<\/code> \u6ca1\u6491\u5f00\u6216\u4e0d\u6eda\u52a8\u7684\u5e03\u5c40\uff0c\u89c1 Ant Design Select \u7ec4\u4ef6 getPopupContainer()<\/code> prop<\/a>\u3002<\/p>\n
\u603b\u7ed3<\/h2>\n
\u672c\u6587\u91cd\u6e29\u4e86 CSS overflow<\/code> \u7684\u57fa\u7840\u7279\u6027\uff0c\u548c\u4e0e\u5176\u76f8\u5173\u8054\u7684\u5143\u7d20\u9ad8\u5ea6\u5c5e\u6027\uff0c\u5e76\u901a\u8fc7 demo \u89c2\u6d4b overflow<\/code> \u7684\u5404\u4e2a\u503c\u662f\u5982\u4f55\u5f71\u54cd\u5143\u7d20\u9ad8\u5ea6\u3001\u9875\u9762\u5e03\u5c40\u7684\uff0c\u63a2\u7d22\u5982\u4f55\u89e3\u51b3\u60ac\u6d6e\u5143\u7d20\u6eda\u52a8\u5206\u79bb\u7684\u95ee\u9898\u3002\u4ee5\u540e\u5728\u9047\u5230\u6eda\u52a8\u76f8\u5173\u95ee\u9898\u65f6\uff0c\u53ef\u4ee5\u5229\u7528 overflow<\/code>\u3001scrollTop<\/code> \u5b9a\u4f4d\u6eda\u52a8\u533a\u57df\uff0c\u5f04\u6e05\u695a\u662f\u54ea\u4e2a\u5b50\u5143\u7d20\u5728\u7236\u5143\u7d20\u91cc\u6ea2\u51fa\u4e86\u3002<\/p>\n
CSS \u771f\u662f\u8d8a\u5b66\u8d8a\u7384\uff0c\u5f88\u591a\u60c5\u51b5\u90fd\u9700\u8981\u4f9d\u9760\u5177\u4f53\u8868\u73b0\u548c\u6570\u636e\u6765\u63a8\u65ad\u6d4f\u89c8\u5668\u7684\u9875\u9762\u6e32\u67d3\u673a\u5236\uff0c\u7384\u5b66\u8fd8\u5f97\u9760\u5b9e\u9a8c\u89c2\u6d4b\ud83d\udc41<\/p>\n
\u53c2\u8003<\/h2>\n
MDN CSS overflow<\/a><\/p>\n
The CSS Overflow Property<\/a><\/p>\n
Measuring Element Dimension and Location with CSSOM in Windows Internet Explorer 9<\/a><\/p>"},{"title":"\u8bbe\u8ba1\u4e00\u5bf9\u901a\u7528\u7684\u6d88\u606f\u63d0\u793a\u7ec4\u4ef6 \u2014\u2014 Alert & Toast","link":"https:\/\/jancat.github.io\/post\/2020\/design-a-pair-of-general-message-prompt-components-alert-and-toast\/","pubDate":"Sat, 26 Dec 2020 22:02:07 +0800","guid":"https:\/\/jancat.github.io\/post\/2020\/design-a-pair-of-general-message-prompt-components-alert-and-toast\/","description":"
\"\"<\/p>\n
\u5728\u6d4f\u89c8\u5668\u9875\u9762\u4e2d\uff0c\u901a\u7528\u7684\u6d88\u606f\u63d0\u793a\u7ec4\u4ef6\u4e00\u822c\u53ef\u4ee5\u5206\u4e3a\u9759\u6001\u5c40\u90e8\u63d0\u793a<\/strong>\u548c\u52a8\u6001\u5168\u5c40\u63d0\u793a<\/strong>\uff0c\u7528\u4e8e\u53cd\u9988\u7528\u6237\u9700\u8981\u5173\u6ce8\u7684\u4fe1\u606f\uff0c\u4f7f\u7528\u9891\u7387\u8f83\u9ad8\u3002<\/p>\n
\u867d\u7136\u8fd9\u4e24\u79cd\u63d0\u793a\u4ece\u89c6\u89c9\u4ea4\u4e92\u4e0a\u6765\u770b\u6bd4\u8f83\u76f8\u4f3c\uff0c\u4f46\u4f7f\u7528\u573a\u666f\u4e0d\u540c\uff0c\u7ec4\u4ef6\u5bf9\u5916\u66b4\u9732\u7684\u63a5\u53e3\u4e5f\u6709\u4e00\u70b9\u533a\u522b\uff0c\u6240\u4ee5\u4e00\u822c\u62c6\u5206\u6210\u4e24\u4e2a UI \u7ec4\u4ef6\u63d0\u4f9b\u7ed9\u4e1a\u52a1\u65b9\u4f7f\u7528\u3002<\/p>\n
\u4ee3\u7801\u672a\u52a8\uff0c\u8bbe\u8ba1\u5148\u884c\uff0c\u5148\u8003\u8651\u63a5\u53e3\uff0c\u518d\u8003\u8651\u5b9e\u73b0\u3002\u672c\u6587\u4ecb\u7ecd\u5982\u4f55\u8bbe\u8ba1\u8fd9\u4e24\u4e2a\u7ec4\u4ef6\uff08\u5c55\u793a\u3001\u4ea4\u4e92\u3001API\u3001\u5b9e\u73b0\u601d\u8def\uff09\uff0c\u6ee1\u8db3\u4e1a\u52a1\u65b9\u7684\u5b9a\u5236\u5316\u548c\u7ec4\u4ef6\u7684\u901a\u7528\u5316\uff0c\u63d0\u4f9b\u7b80\u5355\u6613\u7528\u3001\u89c6\u89c9\u4ea4\u4e92\u53cb\u597d\u7684\u6d88\u606f\u63d0\u793a\u7ec4\u4ef6\u3002<\/p>\n
\u4ee5\u4e0b\u7684\u8bbe\u8ba1\u601d\u8def\u6574\u7406\u603b\u7ed3\u81ea People Design\u3001 Ant Design \u3001Material-UI \u7684\u6d88\u606f\u63d0\u793a\u7ec4\u4ef6 \uff0c\u4e3b\u8981\u9488\u5bf9 PC \u7aef\u8bbe\u8ba1\u5c55\u793a\u548c\u4ea4\u4e92\uff0c\u4f7f\u7528 React \u8bed\u6cd5 \uff1b\u672c\u6587\u4e3b\u8981\u5173\u6ce8\u7ec4\u4ef6\u57fa\u7840\u8bbe\u8ba1\u601d\u8def\uff0c\u4e0d\u6d89\u53ca\uff1a\u5177\u4f53\u4ee3\u7801\u5b9e\u73b0\u3001\u65e0\u969c\u788d\u8bbe\u8ba1 WAI-ARIA\u3001\u4e3b\u9898\u5207\u6362\u3001\u79fb\u52a8\u7aef\u9002\u914d\u7b49\u3002<\/p>\n
Alert & Toast \u2193\u2193<\/p>\n
Alert \u8b66\u544a\u63d0\u793a<\/h2>\n
\u9759\u6001\u5c40\u90e8\u63d0\u793a\u7ec4\u4ef6\u5728 Antd \u548c Material-UI \u4e2d\u547d\u540d\u4e3a Alert \u8b66\u544a\u63d0\u793a<\/strong><\/p>\n
\u4f7f\u7528\u573a\u666f<\/h3>\n
\u9875\u9762\u5c40\u90e8\u5c55\u793a\u4e00\u6bb5\u7b80\u77ed\u4e14\u91cd\u8981\u7684\u4fe1\u606f\uff0c\u5728\u4e0d\u5f71\u54cd\u7528\u6237\u64cd\u4f5c\u7684\u540c\u65f6\u80fd\u591f\u5438\u5f15\u7528\u6237\u7684\u6ce8\u610f\u529b\u3002<\/p>\n
\u5c55\u793a\u4ea4\u4e92<\/h3>\n
\u6d88\u606f\u6846\u5bbd\u5ea6\u9ed8\u8ba4\u6c34\u5e73\u6491\u6ee1\u5f53\u524d\u5bb9\u5668\uff0c\u4ee5\u975e\u6d6e\u5c42\u7684\u9759\u6001\u5c55\u73b0\u5f62\u5f0f\uff0c\u59cb\u7ec8\u5c55\u73b0\uff0c\u4e0d\u4f1a\u81ea\u52a8\u6d88\u5931\uff0c\u7528\u6237\u53ef\u4ee5\u70b9\u51fb\u5173\u95ed\uff0c\u53ef\u4ee5\u63d0\u4f9b\u81ea\u5b9a\u4e49\u7684\u64cd\u4f5c\u6309\u94ae\u3002<\/p>\n
\u6807\u9898\u548c\u63cf\u8ff0<\/h3>\n
Alert \u63d0\u793a\u53ef\u4ee5\u6307\u5b9a\u6807\u9898\uff0c\u8868\u793a\u63d0\u793a\u7684\u7c7b\u578b\u6216\u4e3b\u9898<\/p>\n
\u957f\u6587\u672c\u63d0\u793a\u5efa\u8bae\u589e\u52a0\u6807\u9898\uff0c\u7528\u6237\u53ef\u5feb\u901f\u7406\u89e3\u4e3b\u8981\u5185\u5bb9\uff0c\u5185\u5bb9\u5efa\u8bae\u4e0d\u8d85\u8fc7 4 \u884c\u3002<\/p>\n
\"\"<\/p>\n
Material-UI Alert \u5e26\u6807\u9898\u548c\u5185\u5bb9<\/em><\/p>\n
\"\"<\/p>\n
AntD Alert \u5e26\u6807\u9898\u548c\u5185\u5bb9<\/em><\/p>\n
API \u8bbe\u8ba1<\/h4>\n\n\n\n\n\n\n
\u53c2\u6570<\/th>\n\u8bf4\u660e<\/th>\n\u7c7b\u578b<\/th>\n\u9ed8\u8ba4\u503c<\/th>\n<\/tr>\n<\/thead>\n
message<\/td>\n\u8b66\u544a\u63d0\u793a\u5185\u5bb9\uff0c\u4e00\u822c\u662f\u6587\u672c<\/td>\nReactNode<\/td>\n-<\/td>\n<\/tr>\n
title<\/td>\n\u5728\u5185\u5bb9\u4e0a\u65b9\u5c55\u793a\u7684\u6d88\u606f\u6807\u9898<\/td>\nReactNode<\/td>\n-<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n
\n
1\n<\/span><\/code><\/pre><\/td>\n
\n
<<\/span>Alert<\/span> title<\/span>=<\/span>"\u6807\u9898"<\/span> message<\/span>=<\/span>"\u63d0\u793a\u5185\u5bb9"<\/span> \/><\/span>\n<\/code><\/pre><\/td><\/tr><\/table>\n<\/div>\n<\/div>
\u63d0\u793a\u7c7b\u578b<\/h3>\n
Alert \u6309\u7167\u529f\u80fd\u9ed8\u8ba4\u63d0\u4f9b\u56db\u79cd\u7c7b\u578b\u7684\u63d0\u793a\uff0c\u5206\u522b\u662f\uff1a<\/p>\n