{"id":169349,"date":"2024-05-08T16:43:54","date_gmt":"2024-05-08T08:43:54","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/169349.html"},"modified":"2024-05-08T16:43:59","modified_gmt":"2024-05-08T08:43:59","slug":"javascript-%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e8%bf%9b%e5%88%b6%e8%bd%ac%e6%8d%a2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/169349.html","title":{"rendered":"JavaScript \u5982\u4f55\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362"},"content":{"rendered":"

\"JavaScript<\/p>\n

\u5728JavaScript\u4e2d\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u9700\u6c42\uff0c\u53ef\u4ee5\u901a\u8fc7\u5185\u7f6e\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0<\/strong>\u3002\u4e3b\u8981\u6d89\u53ca\u5230toString()<\/code>\u65b9\u6cd5\u3001parseInt()<\/code>\u51fd\u6570\u3001\u4ee5\u53ca\u7a0d\u5fae\u9ad8\u9636\u4e00\u70b9\u7684\u4e8c\u8fdb\u5236\u3001\u516b\u8fdb\u5236\u3001\u5341\u516d\u8fdb\u5236\u4e4b\u95f4\u7684\u8f6c\u6362\u3002\u8fd9\u4e9b\u529f\u80fd\u5141\u8bb8\u5f00\u53d1\u8005\u8f7b\u677e\u5730\u5728\u4e0d\u540c\u7684\u6570\u5b57\u8868\u793a\u6cd5\u4e4b\u95f4\u8f6c\u6362\uff0c\u8fdb\u800c\u5904\u7406\u66f4\u590d\u6742\u7684\u5f00\u53d1\u9700\u6c42\u3002\u672c\u6587\u5c06\u91cd\u70b9\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528parseInt()<\/code>\u51fd\u6570\u548ctoString()<\/code>\u65b9\u6cd5\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362\uff0c\u5e76\u5c06\u6df1\u5165\u63a2\u8ba8\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u5982\u4f55\u8fd0\u7528\u5b83\u4eec\u8fdb\u884c\u4e8c\u8fdb\u5236\u3001\u516b\u8fdb\u5236\u3001\u5341\u516d\u8fdb\u5236\u4e4b\u95f4\u7684\u76f8\u4e92\u8f6c\u6362\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528toString()<\/code>\u65b9\u6cd5\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362<\/h3>\n<\/p>\n

toString()<\/code>\u65b9\u6cd5\u662f\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362\u7684\u4e00\u79cd\u7b80\u5355\u65b9\u5f0f\u3002\u5b83\u53ef\u4ee5\u5c06\u4efb\u610f\u8fdb\u5236\u7684\u6570\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u5f62\u5f0f\u7684\u76ee\u6807\u8fdb\u5236\u6570\u3002\u8be5\u65b9\u6cd5\u7684\u57fa\u672c\u7528\u6cd5\u662fnum.toString([radix])<\/code>\uff0c\u5176\u4e2dnum<\/code>\u662f\u5f85\u8f6c\u6362\u7684\u6570\uff0cradix<\/code>\u662f\u4ecb\u4e8e2\u523036\u4e4b\u95f4\u7684\u6574\u6570\uff0c\u8868\u793a\u76ee\u6807\u8fdb\u5236\u3002<\/p>\n<\/p>\n

\u4f8b\u5b501\uff1a\u5341\u8fdb\u5236\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236<\/h4>\n<\/p>\n

let decimalNumber = 10;<\/p>\n
let binaryString = decimalNumber.toString(2);<\/p>\n
console.log(binaryString); \/\/ \u8f93\u51fa"1010"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u4e2a\u4f8b\u5b50\u5c55\u793a\u4e86\u5982\u4f55\u5c06\u5341\u8fdb\u5236\u657010<\/code>\u8f6c\u6362\u6210\u4e8c\u8fdb\u5236\u8868\u793a\u3002\u8c03\u7528toString()<\/code>\u65b9\u6cd5\u5e76\u4f20\u51652<\/code>\u4f5c\u4e3a\u53c2\u6570\uff0c\u5373\u53ef\u5f97\u5230\u4e8c\u8fdb\u5236\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32"1010"\u3002<\/p>\n<\/p>\n
\u4f8b\u5b502\uff1a\u5341\u8fdb\u5236\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236<\/h4>\n<\/p>\n
let decimalNumber = 255;<\/p>\n
let hexString = decimalNumber.toString(16);<\/p>\n
console.log(hexString); \/\/ \u8f93\u51fa"ff"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u91cc\u5c06\u5341\u8fdb\u5236\u6570255<\/code>\u8f6c\u6362\u6210\u4e86\u5341\u516d\u8fdb\u5236\u8868\u793a\u3002\u4f20\u516516<\/code>\u4f5c\u4e3atoString()<\/code>\u65b9\u6cd5\u7684\u53c2\u6570\uff0c\u5373\u5f97\u5230\u5bf9\u5e94\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32"ff"\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528parseInt()<\/code>\u51fd\u6570\u8fdb\u884c\u8fdb\u5236\u8f6c\u6362<\/h3>\n<\/p>\n
\u4e0etoString()<\/code>\u65b9\u6cd5\u76f8\u5bf9\u5e94\uff0cparseInt()<\/code>\u51fd\u6570\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u5f62\u5f0f\u7684\u6570\u8f6c\u6362\u6210\u6307\u5b9a\u8fdb\u5236\u7684\u6574\u6570\u3002\u5176\u57fa\u672c\u8bed\u6cd5\u4e3aparseInt(string, [radix])<\/code>\uff0cstring<\/code>\u662f\u5305\u542b\u8981\u8f6c\u6362\u7684\u6570\u7684\u5b57\u7b26\u4e32\uff0cradix<\/code>\u662f\u8f6c\u6362\u7684\u57fa\u6570\uff08\u8fdb\u5236\uff09\uff0c\u540c\u6837\u662f2\u523036\u4e4b\u95f4\u7684\u6574\u6570\u3002<\/p>\n<\/p>\n
\u4f8b\u5b501\uff1a\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236<\/h4>\n<\/p>\n
let binaryString = "1010";<\/p>\n
let decimalNumber = parseInt(binaryString, 2);<\/p>\n
console.log(decimalNumber); \/\/ \u8f93\u51fa10<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u4e2a\u4f8b\u5b50\u5c55\u793a\u4e86\u5982\u4f55\u5c06\u4e8c\u8fdb\u5236\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32"1010"\u8f6c\u6362\u6210\u5341\u8fdb\u5236\u657010<\/code>\u3002\u901a\u8fc7\u5728parseInt()<\/code>\u51fd\u6570\u4e2d\u6307\u5b9a\u57fa\u65702<\/code>\uff0c\u5b8c\u6210\u4e86\u8fdb\u5236\u7684\u8f6c\u6362\u3002<\/p>\n<\/p>\n
\u4f8b\u5b502\uff1a\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236<\/h4>\n<\/p>\n
let hexString = "ff";<\/p>\n
let decimalNumber = parseInt(hexString, 16);<\/p>\n
console.log(decimalNumber); \/\/ \u8f93\u51fa255<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5c06\u5341\u516d\u8fdb\u5236\u7684\u5b57\u7b26\u4e32"ff"\u8f6c\u6362\u6210\u4e86\u5341\u8fdb\u5236\u6570255<\/code>\u3002\u901a\u8fc7\u6307\u5b9aparseInt()<\/code>\u51fd\u6570\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e3a16<\/code>\uff0c\u5b9e\u73b0\u4e86\u5341\u516d\u8fdb\u5236\u5230\u5341\u8fdb\u5236\u7684\u8f6c\u6362\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u5b9e\u73b0\u4e8c\u8fdb\u5236\u3001\u516b\u8fdb\u5236\u3001\u5341\u516d\u8fdb\u5236\u4e4b\u95f4\u7684\u8f6c\u6362<\/h3>\n<\/p>\n
\u867d\u7136toString()<\/code>\u548cparseInt()<\/code>\u53ef\u4ee5\u6ee1\u8db3\u5927\u90e8\u5206\u8fdb\u5236\u8f6c\u6362\u7684\u9700\u6c42\uff0c\u4f46\u5728\u4e00\u4e9b\u7279\u5b9a\u7684\u573a\u666f\u4e2d\uff0c\u76f4\u63a5\u5b9e\u73b0\u4e8c\u8fdb\u5236\u3001\u516b\u8fdb\u5236\u3001\u5341\u516d\u8fdb\u5236\u4e4b\u95f4\u7684\u8f6c\u6362\u4f1a\u66f4\u52a0\u9ad8\u6548\u3002<\/p>\n<\/p>\n
\u4e8c\u8fdb\u5236\u8f6c\u6362\u6210\u516b\u8fdb\u5236<\/h4>\n<\/p>\n
\u9996\u5148\uff0c\u53ef\u4ee5\u5c06\u4e8c\u8fdb\u5236\u6570\u901a\u8fc7parseInt()<\/code>\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\uff0c\u7136\u540e\u518d\u7528toString()<\/code>\u8f6c\u6362\u4e3a\u516b\u8fdb\u5236\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32\u3002\u8fd9\u79cd\u65b9\u6cd5\u867d\u7136\u95f4\u63a5\uff0c\u4f46\u662f\u64cd\u4f5c\u7b80\u5355\uff0c\u6613\u4e8e\u7406\u89e3\u3002<\/p>\n<\/p>\n
let binaryString = "1010";<\/p>\n
let decimalNumber = parseInt(binaryString, 2);<\/p>\n
let octalString = decimalNumber.toString(8);<\/p>\n
console.log(octalString); \/\/ \u8f93\u51fa"12"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5341\u516d\u8fdb\u5236\u8f6c\u6362\u6210\u4e8c\u8fdb\u5236<\/h4>\n<\/p>\n
\u4e0e\u4e0a\u9762\u7684\u65b9\u6cd5\u7c7b\u4f3c\uff0c\u9996\u5148\u5c06\u5341\u516d\u8fdb\u5236\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u6570\uff0c\u7136\u540e\u518d\u4ece\u5341\u8fdb\u5236\u8f6c\u6362\u5230\u4e8c\u8fdb\u5236\u3002<\/p>\n<\/p>\n
let hexString = "ff";<\/p>\n
let decimalNumber = parseInt(hexString, 16);<\/p>\n
let binaryString = decimalNumber.toString(2);<\/p>\n
console.log(binaryString); \/\/ \u8f93\u51fa"11111111"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u6837\u7684\u8f6c\u6362\u65b9\u6cd5\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u7075\u6d3b\u5730\u5728\u4e0d\u540c\u7684\u8fdb\u5236\u8868\u793a\u4e4b\u95f4\u76f8\u4e92\u8f6c\u6362\uff0c\u6ee1\u8db3\u5404\u79cd\u5f00\u53d1\u573a\u666f\u7684\u9700\u8981\u3002\u603b\u4e4b\uff0c\u638c\u63e1toString()<\/code>\u65b9\u6cd5\u548cparseInt()<\/code>\u51fd\u6570\u5728\u8fdb\u5236\u8f6c\u6362\u4e2d\u7684\u5e94\u7528\u662f\u975e\u5e38\u6709\u7528\u7684\uff0c\u5b83\u4eec\u662fJavaScript\u4e2d\u5904\u7406\u6570\u5b57\u548c\u8fdb\u5236\u8f6c\u6362\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
1. JavaScript\u4e2d\u5982\u4f55\u5c06\u5341\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5176\u4ed6\u8fdb\u5236\u6570\uff1f<\/strong><\/p>\n
JavaScript\u4e2d\u6709\u4e00\u4e2a\u5185\u7f6e\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u5c06\u5341\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5176\u4ed6\u8fdb\u5236\u6570\u7684\u529f\u80fd\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528Number.toString()<\/code>\u65b9\u6cd5\u6307\u5b9a\u76ee\u6807\u8fdb\u5236\u6765\u8fdb\u884c\u8f6c\u6362\u3002\u4f8b\u5982\uff0c\u8981\u5c06\u4e00\u4e2a\u5341\u8fdb\u5236\u6570\u8f6c\u6362\u6210\u4e8c\u8fdb\u5236\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
let decimalNumber = 10;\nlet binaryNumber = decimalNumber.toString(2);\nconsole.log(binaryNumber);  \/\/ \u8f93\u51fa: 1010\n<\/code><\/pre>\n
2. JavaScript\u4e2d\u5982\u4f55\u5c06\u5176\u4ed6\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u6570\uff1f<\/strong><\/p>\n
\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u5176\u4ed6\u8fdb\u5236\u7684\u6570\uff0c\u60f3\u8981\u5c06\u5176\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528parseInt()<\/code>\u65b9\u6cd5\u5e76\u6307\u5b9a\u5f53\u524d\u8fdb\u5236\u3002\u4f8b\u5982\uff0c\u5c06\u4e00\u4e2a\u5341\u516d\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
let hexNumber = "FF";\nlet decimalNumber = parseInt(hexNumber, 16);\nconsole.log(decimalNumber);  \/\/ \u8f93\u51fa: 255\n<\/code><\/pre>\n
3. JavaScript\u4e2d\u5982\u4f55\u5728\u4e0d\u540c\u8fdb\u5236\u4e4b\u95f4\u8fdb\u884c\u8f6c\u6362\uff1f<\/strong><\/p>\n
\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e0a\u8ff0\u4e24\u4e2a\u65b9\u6cd5\u7684\u7ec4\u5408\u6765\u5b9e\u73b0\u4e0d\u540c\u8fdb\u5236\u4e4b\u95f4\u7684\u8f6c\u6362\u3002\u9996\u5148\uff0c\u5c06\u539f\u59cb\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u6570\uff0c\u7136\u540e\u518d\u5c06\u5341\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u76ee\u6807\u8fdb\u5236\u6570\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5c06\u4e8c\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\u6570\u7684\u793a\u4f8b\uff1a<\/p>\n
let binaryNumber = "1010";\nlet decimalNumber = parseInt(binaryNumber, 2);\nlet hexNumber = decimalNumber.toString(16);\nconsole.log(hexNumber);  \/\/ \u8f93\u51fa: A\n<\/code><\/pre>\n
\u901a\u8fc7\u7ec4\u5408\u4f7f\u7528\u8fd9\u4e24\u4e2a\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u8fdb\u5236\u4e4b\u95f4\u8fdb\u884c\u7075\u6d3b\u7684\u8f6c\u6362\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728JavaScript\u4e2d\u5b9e\u73b0\u8fdb\u5236\u8f6c\u6362\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u9700\u6c42\uff0c\u53ef\u4ee5\u901a\u8fc7\u5185\u7f6e\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u4e3b\u8981\u6d89\u53ca\u5230toString() […]","protected":false},"author":3,"featured_media":169353,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/169349"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=169349"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/169349\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/169353"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=169349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=169349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=169349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}