{"id":1062009,"date":"2024-12-31T15:47:43","date_gmt":"2024-12-31T07:47:43","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1062009.html"},"modified":"2024-12-31T15:47:45","modified_gmt":"2024-12-31T07:47:45","slug":"python%e5%a6%82%e4%bd%95%e4%bf%ae%e6%94%b9%e4%b8%80%e4%b8%aa%e6%96%87%e4%bb%b6%e7%9a%84-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1062009.html","title":{"rendered":"python\u5982\u4f55\u4fee\u6539\u4e00\u4e2a\u6587\u4ef6\u7684"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2024\/12\/8015ddcb-008c-43d0-a69f-d697b50f6570.webp?x-oss-process=image\/auto-orient,1\/format,webp\" alt=\"python\u5982\u4f55\u4fee\u6539\u4e00\u4e2a\u6587\u4ef6\u7684\" \/><\/p>\n<p><p> \u4e00\u3001\u4fee\u6539\u4e00\u4e2a\u6587\u4ef6\u7684\u65b9\u6cd5\u3001\u8bfb\u53d6\u6587\u4ef6\u3001\u5199\u5165\u6587\u4ef6\u3001\u5173\u95ed\u6587\u4ef6<\/p>\n<\/p>\n<p><p>\u8981\u4fee\u6539\u4e00\u4e2a\u6587\u4ef6\uff0c\u9996\u5148\u9700\u8981\u8bfb\u53d6\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u7136\u540e\u5bf9\u5185\u5bb9\u8fdb\u884c\u4fee\u6539\uff0c\u6700\u540e\u5c06\u4fee\u6539\u540e\u7684\u5185\u5bb9\u5199\u56de\u6587\u4ef6\u3002<strong>\u8bfb\u53d6\u6587\u4ef6\u3001\u5199\u5165\u6587\u4ef6\u3001\u5173\u95ed\u6587\u4ef6<\/strong>\u662f\u4fee\u6539\u6587\u4ef6\u7684\u6838\u5fc3\u6b65\u9aa4\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u9996\u5148\u6253\u5f00\u6587\u4ef6\uff0c\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u5230\u5185\u5b58\u4e2d\uff0c\u5bf9\u5185\u5bb9\u8fdb\u884c\u76f8\u5e94\u7684\u4fee\u6539\uff0c\u7136\u540e\u4ee5\u5199\u5165\u6a21\u5f0f\u91cd\u65b0\u6253\u5f00\u6587\u4ef6\uff0c\u5c06\u4fee\u6539\u540e\u7684\u5185\u5bb9\u5199\u5165\u6587\u4ef6\uff0c\u6700\u540e\u5173\u95ed\u6587\u4ef6\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u63cf\u8ff0\u5982\u4f55\u8fdb\u884c\u8fd9\u4e9b\u6b65\u9aa4\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u6253\u5f00\u6587\u4ef6<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684<code>open()<\/code>\u51fd\u6570\u6765\u6253\u5f00\u6587\u4ef6\u3002\u8fd9\u4e2a\u51fd\u6570\u6709\u4e24\u4e2a\u53c2\u6570\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6587\u4ef6\u7684\u8def\u5f84\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u6a21\u5f0f\u3002\u5e38\u7528\u7684\u6a21\u5f0f\u5305\u62ec\uff1a<\/p>\n<\/p>\n<ul>\n<li><code>&#39;r&#39;<\/code>\uff1a\u53ea\u8bfb\u6a21\u5f0f\uff08\u9ed8\u8ba4\u6a21\u5f0f\uff09\u3002<\/li>\n<li><code>&#39;w&#39;<\/code>\uff1a\u5199\u5165\u6a21\u5f0f\uff0c\u5982\u679c\u6587\u4ef6\u5b58\u5728\u5219\u8986\u76d6\u6587\u4ef6\u3002<\/li>\n<li><code>&#39;a&#39;<\/code>\uff1a\u8ffd\u52a0\u6a21\u5f0f\uff0c\u5728\u6587\u4ef6\u672b\u5c3e\u6dfb\u52a0\u5185\u5bb9\u3002<\/li>\n<li><code>&#39;r+&#39;<\/code>\uff1a\u8bfb\u5199\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n<p><pre><code class=\"language-python\">file = open(&#39;example.txt&#39;, &#39;r&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e09\u3001\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9<\/p>\n<\/p>\n<p><p>\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u53ef\u4ee5\u4f7f\u7528<code>read()<\/code>, <code>readline()<\/code>, \u6216 <code>readlines()<\/code>\u65b9\u6cd5\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u9700\u6c42\u3002<\/p>\n<\/p>\n<ul>\n<li><code>read()<\/code>\uff1a\u8bfb\u53d6\u6574\u4e2a\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/li>\n<li><code>readline()<\/code>\uff1a\u9010\u884c\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u3002<\/li>\n<li><code>readlines()<\/code>\uff1a\u8bfb\u53d6\u6587\u4ef6\u7684\u6240\u6709\u884c\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5217\u8868\u3002<\/li>\n<\/ul>\n<p><pre><code class=\"language-python\"># \u8bfb\u53d6\u6574\u4e2a\u6587\u4ef6\u5185\u5bb9<\/p>\n<p>content = file.read()<\/p>\n<p>print(content)<\/p>\n<h2><strong>\u9010\u884c\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9<\/strong><\/h2>\n<p>line = file.readline()<\/p>\n<p>while line:<\/p>\n<p>    print(line, end=&#39;&#39;)<\/p>\n<p>    line = file.readline()<\/p>\n<h2><strong>\u8bfb\u53d6\u6240\u6709\u884c<\/strong><\/h2>\n<p>lines = file.readlines()<\/p>\n<p>for line in lines:<\/p>\n<p>    print(line, end=&#39;&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u56db\u3001\u5173\u95ed\u6587\u4ef6<\/p>\n<\/p>\n<p><p>\u8bfb\u53d6\u5b8c\u6587\u4ef6\u5185\u5bb9\u540e\uff0c\u5e94\u53ca\u65f6\u5173\u95ed\u6587\u4ef6\u4ee5\u91ca\u653e\u8d44\u6e90\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">file.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e94\u3001\u4fee\u6539\u6587\u4ef6\u5185\u5bb9<\/p>\n<\/p>\n<p><p>\u5047\u8bbe\u6211\u4eec\u9700\u8981\u5c06\u6587\u4ef6\u4e2d\u7684\u6240\u6709\u5c0f\u5199\u5b57\u6bcd\u8f6c\u6362\u4e3a\u5927\u5199\u5b57\u6bcd\uff0c\u53ef\u4ee5\u5728\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u540e\u4f7f\u7528\u5b57\u7b26\u4e32\u65b9\u6cd5<code>upper()<\/code>\u8fdb\u884c\u8f6c\u6362\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u6253\u5f00\u6587\u4ef6\u5e76\u8bfb\u53d6\u5185\u5bb9<\/p>\n<p>file = open(&#39;example.txt&#39;, &#39;r&#39;)<\/p>\n<p>content = file.read()<\/p>\n<p>file.close()<\/p>\n<h2><strong>\u4fee\u6539\u6587\u4ef6\u5185\u5bb9<\/strong><\/h2>\n<p>modified_content = content.upper()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u516d\u3001\u5199\u5165\u6587\u4ef6\u5185\u5bb9<\/p>\n<\/p>\n<p><p>\u5728\u4fee\u6539\u6587\u4ef6\u5185\u5bb9\u540e\uff0c\u9700\u8981\u5c06\u4fee\u6539\u540e\u7684\u5185\u5bb9\u5199\u56de\u6587\u4ef6\u3002\u53ef\u4ee5\u4f7f\u7528<code>write()<\/code>\u65b9\u6cd5\u5c06\u5185\u5bb9\u5199\u5165\u6587\u4ef6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4ee5\u5199\u5165\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\u5e76\u5199\u5165\u4fee\u6539\u540e\u7684\u5185\u5bb9<\/p>\n<p>file = open(&#39;example.txt&#39;, &#39;w&#39;)<\/p>\n<p>file.write(modified_content)<\/p>\n<p>file.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e03\u3001\u4ee3\u7801\u793a\u4f8b<\/p>\n<\/p>\n<p><p>\u5b8c\u6574\u7684\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u6253\u5f00\u6587\u4ef6\u5e76\u8bfb\u53d6\u5185\u5bb9<\/p>\n<p>file = open(&#39;example.txt&#39;, &#39;r&#39;)<\/p>\n<p>content = file.read()<\/p>\n<p>file.close()<\/p>\n<h2><strong>\u4fee\u6539\u6587\u4ef6\u5185\u5bb9<\/strong><\/h2>\n<p>modified_content = content.upper()<\/p>\n<h2><strong>\u4ee5\u5199\u5165\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\u5e76\u5199\u5165\u4fee\u6539\u540e\u7684\u5185\u5bb9<\/strong><\/h2>\n<p>file = open(&#39;example.txt&#39;, &#39;w&#39;)<\/p>\n<p>file.write(modified_content)<\/p>\n<p>file.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u516b\u3001\u4f7f\u7528<code>with<\/code>\u8bed\u53e5<\/p>\n<\/p>\n<p><p>\u4e3a\u4e86\u66f4\u7b80\u6d01\u548c\u66f4\u5b89\u5168\u5730\u5904\u7406\u6587\u4ef6\u64cd\u4f5c\uff0c\u5efa\u8bae\u4f7f\u7528<code>with<\/code>\u8bed\u53e5\u3002<code>with<\/code>\u8bed\u53e5\u4f1a\u5728\u5757\u7ed3\u675f\u540e\u81ea\u52a8\u5173\u95ed\u6587\u4ef6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4f7f\u7528 with \u8bed\u53e5\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9<\/p>\n<p>with open(&#39;example.txt&#39;, &#39;r&#39;) as file:<\/p>\n<p>    content = file.read()<\/p>\n<h2><strong>\u4fee\u6539\u6587\u4ef6\u5185\u5bb9<\/strong><\/h2>\n<p>modified_content = content.upper()<\/p>\n<h2><strong>\u4f7f\u7528 with \u8bed\u53e5\u5199\u5165\u4fee\u6539\u540e\u7684\u5185\u5bb9<\/strong><\/h2>\n<p>with open(&#39;example.txt&#39;, &#39;w&#39;) as file:<\/p>\n<p>    file.write(modified_content)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e5d\u3001\u5904\u7406\u5927\u6587\u4ef6<\/p>\n<\/p>\n<p><p>\u5982\u679c\u6587\u4ef6\u975e\u5e38\u5927\uff0c\u4e00\u6b21\u6027\u8bfb\u53d6\u6574\u4e2a\u6587\u4ef6\u5185\u5bb9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5185\u5b58\u4e0d\u8db3\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u9010\u884c\u8bfb\u53d6\u548c\u5904\u7406\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u6253\u5f00\u6e90\u6587\u4ef6\u548c\u76ee\u6807\u6587\u4ef6<\/p>\n<p>with open(&#39;example.txt&#39;, &#39;r&#39;) as source_file, open(&#39;modified_example.txt&#39;, &#39;w&#39;) as target_file:<\/p>\n<p>    for line in source_file:<\/p>\n<p>        # \u4fee\u6539\u6bcf\u884c\u5185\u5bb9<\/p>\n<p>        modified_line = line.upper()<\/p>\n<p>        # \u5199\u5165\u4fee\u6539\u540e\u7684\u5185\u5bb9<\/p>\n<p>        target_file.write(modified_line)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5341\u3001\u7ed3\u8bba<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u5728Python\u4e2d\u4fee\u6539\u6587\u4ef6\u5185\u5bb9\u3002<strong>\u8bfb\u53d6\u6587\u4ef6\u3001\u5199\u5165\u6587\u4ef6\u3001\u5173\u95ed\u6587\u4ef6<\/strong>\u662f\u4fee\u6539\u6587\u4ef6\u7684\u6838\u5fc3\u6b65\u9aa4\u3002\u4f7f\u7528<code>with<\/code>\u8bed\u53e5\u53ef\u4ee5\u66f4\u5b89\u5168\u5730\u5904\u7406\u6587\u4ef6\u64cd\u4f5c\uff0c\u5904\u7406\u5927\u6587\u4ef6\u65f6\u9010\u884c\u8bfb\u53d6\u548c\u5199\u5165\u53ef\u4ee5\u907f\u514d\u5185\u5b58\u4e0d\u8db3\u7684\u95ee\u9898\u3002\u5e0c\u671b\u8fd9\u4e9b\u5185\u5bb9\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff0c\u80fd\u591f\u66f4\u597d\u5730\u5904\u7406\u6587\u4ef6\u64cd\u4f5c\u4efb\u52a1\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u4f7f\u7528Python\u4fee\u6539\u6587\u672c\u6587\u4ef6\u7684\u5185\u5bb9\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684<code>open()<\/code>\u51fd\u6570\u6765\u6253\u5f00\u6587\u4ef6\uff0c\u5e76\u901a\u8fc7<code>read()<\/code>, <code>write()<\/code>\u6216<code>writelines()<\/code>\u7b49\u65b9\u6cd5\u6765\u4fee\u6539\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u6253\u5f00\u6587\u4ef6\u65f6\uff0c\u53ef\u4ee5\u9009\u62e9\u4e0d\u540c\u7684\u6a21\u5f0f\uff0c\u5982<code>&#39;r+&#39;<\/code>\uff08\u8bfb\u5199\u6a21\u5f0f\uff09\u6216<code>&#39;w&#39;<\/code>\uff08\u5199\u6a21\u5f0f\uff09\u3002\u786e\u4fdd\u5728\u5199\u5165\u4e4b\u524d\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u5e76\u8fdb\u884c\u5fc5\u8981\u7684\u4fee\u6539\uff0c\u4ee5\u514d\u4e22\u5931\u539f\u6709\u6570\u636e\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u4fee\u6539\u6587\u4ef6\u65f6\uff0c\u5982\u4f55\u786e\u4fdd\u6570\u636e\u7684\u5b89\u5168\u6027\uff1f<\/strong><br \/>\u4e3a\u4e86\u786e\u4fdd\u5728\u4fee\u6539\u6587\u4ef6\u65f6\u6570\u636e\u7684\u5b89\u5168\u6027\uff0c\u5efa\u8bae\u4f7f\u7528\u4e34\u65f6\u6587\u4ef6\u7684\u65b9\u5f0f\u3002\u9996\u5148\u8bfb\u53d6\u539f\u6587\u4ef6\u5185\u5bb9\u5e76\u5b58\u50a8\u5230\u4e34\u65f6\u6587\u4ef6\u4e2d\uff0c\u8fdb\u884c\u4fee\u6539\u540e\u518d\u5c06\u4e34\u65f6\u6587\u4ef6\u7684\u5185\u5bb9\u5199\u56de\u539f\u6587\u4ef6\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u610f\u5916\u635f\u574f\u539f\u6587\u4ef6\u3002\u4f7f\u7528<code>shutil<\/code>\u6a21\u5757\u4e2d\u7684<code>copyfile()<\/code>\u51fd\u6570\u4e5f\u53ef\u4ee5\u5e2e\u52a9\u4fdd\u7559\u539f\u59cb\u6570\u636e\u7684\u526f\u672c\u3002<\/p>\n<p><strong>Python\u662f\u5426\u652f\u6301\u6279\u91cf\u4fee\u6539\u591a\u4e2a\u6587\u4ef6\uff1f<\/strong><br \/>Python\u5b8c\u5168\u652f\u6301\u6279\u91cf\u4fee\u6539\u591a\u4e2a\u6587\u4ef6\u3002\u53ef\u4ee5\u4f7f\u7528<code>os<\/code>\u6a21\u5757\u6765\u904d\u5386\u6307\u5b9a\u76ee\u5f55\u4e0b\u7684\u6240\u6709\u6587\u4ef6\uff0c\u5e76\u7ed3\u5408<code>open()<\/code>\u51fd\u6570\u548c\u6587\u4ef6\u64cd\u4f5c\u65b9\u6cd5\u6765\u9010\u4e2a\u4fee\u6539\u6587\u4ef6\u5185\u5bb9\u3002\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6216\u8005\u5b57\u7b26\u4e32\u5904\u7406\u51fd\u6570\uff0c\u53ef\u4ee5\u7075\u6d3b\u5730\u5bf9\u6587\u4ef6\u8fdb\u884c\u6279\u91cf\u66ff\u6362\u548c\u4fee\u6539\uff0c\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u4e00\u3001\u4fee\u6539\u4e00\u4e2a\u6587\u4ef6\u7684\u65b9\u6cd5\u3001\u8bfb\u53d6\u6587\u4ef6\u3001\u5199\u5165\u6587\u4ef6\u3001\u5173\u95ed\u6587\u4ef6 \u8981\u4fee\u6539\u4e00\u4e2a\u6587\u4ef6\uff0c\u9996\u5148\u9700\u8981\u8bfb\u53d6\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u7136\u540e\u5bf9\u5185\u5bb9\u8fdb\u884c\u4fee 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