{"id":1176109,"date":"2025-01-15T17:40:55","date_gmt":"2025-01-15T09:40:55","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1176109.html"},"modified":"2025-01-15T17:40:58","modified_gmt":"2025-01-15T09:40:58","slug":"python%e7%9a%84txt%e6%96%87%e4%bb%b6%e5%a6%82%e4%bd%95%e6%94%b9%e5%86%99-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1176109.html","title":{"rendered":"Python\u7684TXT\u6587\u4ef6\u5982\u4f55\u6539\u5199"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25111350\/0afccd86-b796-43cf-a228-544322bebf16.webp\" alt=\"Python\u7684TXT\u6587\u4ef6\u5982\u4f55\u6539\u5199\" \/><\/p>\n<p><p> \u8981\u6539\u5199Python\u4e2d\u7684TXT\u6587\u4ef6\uff0c\u4e3b\u8981\u4f7f\u7528Python\u5185\u7f6e\u7684\u6587\u4ef6\u5904\u7406\u51fd\u6570\u548c\u64cd\u4f5c\u7cfb\u7edf\u6a21\u5757\u3002<strong>\u53ef\u4ee5\u4f7f\u7528<code>open<\/code>\u51fd\u6570\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3001\u5229\u7528<code>with<\/code>\u8bed\u53e5\u7ba1\u7406\u6587\u4ef6\u4e0a\u4e0b\u6587\u3001\u901a\u8fc7<code>os<\/code>\u6a21\u5757\u8fdb\u884c\u6587\u4ef6\u91cd\u547d\u540d\u548c\u5220\u9664\u64cd\u4f5c<\/strong>\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u4ecb\u7ecd\u5176\u4e2d\u7684\u4e00\u4e2a\u65b9\u6cd5\uff1a\u4f7f\u7528<code>open<\/code>\u51fd\u6570\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>open<\/code>\u51fd\u6570\u6253\u5f00\u6587\u4ef6\uff0c\u7136\u540e\u6839\u636e\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6a21\u5f0f\uff08\u5982\u8bfb\u6a21\u5f0f<code>&#39;r&#39;<\/code>\u3001\u5199\u6a21\u5f0f<code>&#39;w&#39;<\/code>\u3001\u8ffd\u52a0\u6a21\u5f0f<code>&#39;a&#39;<\/code>\u7b49\uff09\u8fdb\u884c\u64cd\u4f5c\u3002\u4f7f\u7528<code>write<\/code>\u65b9\u6cd5\u53ef\u4ee5\u5c06\u5185\u5bb9\u5199\u5165\u6587\u4ef6\uff0c\u4f7f\u7528<code>read<\/code>\u65b9\u6cd5\u53ef\u4ee5\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u529f\u80fd\u6765\u6539\u5199TXT\u6587\u4ef6\u3002<\/p>\n<\/p>\n<hr>\n<h2><strong>\u4e00\u3001\u6587\u4ef6\u7684\u6253\u5f00\u4e0e\u5173\u95ed<\/strong><\/h2>\n<p><p>\u5728Python\u4e2d\uff0c\u6587\u4ef6\u7684\u6253\u5f00\u4e0e\u5173\u95ed\u4e3b\u8981\u901a\u8fc7<code>open<\/code>\u51fd\u6570\u548c<code>close<\/code>\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u6253\u5f00\u6587\u4ef6\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u6587\u4ef6\u540d\u548c\u6a21\u5f0f\uff0c\u6a21\u5f0f\u51b3\u5b9a\u4e86\u6587\u4ef6\u7684\u6253\u5f00\u65b9\u5f0f\u3002<\/p>\n<\/p>\n<p><h2>1\u3001\u6587\u4ef6\u6a21\u5f0f\u4ecb\u7ecd<\/h2>\n<\/p>\n<p><p>\u5728\u4f7f\u7528<code>open<\/code>\u51fd\u6570\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u6587\u4ef6\u6a21\u5f0f\uff0c\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\uff0c\u6587\u4ef6\u5fc5\u987b\u5b58\u5728\u3002<\/li>\n<li><code>&#39;w&#39;<\/code>\uff1a\u5199\u5165\u6a21\u5f0f\uff0c\u6587\u4ef6\u4e0d\u5b58\u5728\u4f1a\u521b\u5efa\u65b0\u6587\u4ef6\uff0c\u5b58\u5728\u5219\u6e05\u7a7a\u5185\u5bb9\u3002<\/li>\n<li><code>&#39;a&#39;<\/code>\uff1a\u8ffd\u52a0\u6a21\u5f0f\uff0c\u6587\u4ef6\u4e0d\u5b58\u5728\u4f1a\u521b\u5efa\u65b0\u6587\u4ef6\uff0c\u5b58\u5728\u5219\u5728\u6587\u4ef6\u672b\u5c3e\u8ffd\u52a0\u5185\u5bb9\u3002<\/li>\n<li><code>&#39;rb&#39;<\/code>\u3001<code>&#39;wb&#39;<\/code>\u3001<code>&#39;ab&#39;<\/code>\uff1a\u4e0e\u4e0a\u8ff0\u6a21\u5f0f\u7c7b\u4f3c\uff0c\u4f46\u4ee5\u4e8c\u8fdb\u5236\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\u3002<\/li>\n<\/ul>\n<p><h2>2\u3001\u4f7f\u7528<code>open<\/code>\u548c<code>close<\/code>\u65b9\u6cd5<\/h2>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u8bfb\u53d6<\/p>\n<p>file = open(&#39;example.txt&#39;, &#39;r&#39;)<\/p>\n<p>content = file.read()<\/p>\n<p>print(content)<\/p>\n<p>file.close()<\/p>\n<h2><strong>\u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u5199\u5165<\/strong><\/h2>\n<p>file = open(&#39;example.txt&#39;, &#39;w&#39;)<\/p>\n<p>file.write(&#39;Hello, World!&#39;)<\/p>\n<p>file.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u4ee5\u53ea\u8bfb\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6<code>example.txt<\/code>\uff0c\u8bfb\u53d6\u5176\u5185\u5bb9\u5e76\u6253\u5370\u3002\u7136\u540e\u4ee5\u5199\u5165\u6a21\u5f0f\u6253\u5f00\u540c\u4e00\u6587\u4ef6\uff0c\u5c06\u5b57\u7b26\u4e32<code>&#39;Hello, World!&#39;<\/code>\u5199\u5165\u6587\u4ef6\u4e2d\u3002<\/p>\n<\/p>\n<h2><strong>\u4e8c\u3001\u4f7f\u7528<code>with<\/code>\u8bed\u53e5\u7ba1\u7406\u6587\u4ef6\u4e0a\u4e0b\u6587<\/strong><\/h2>\n<p><p>\u4f7f\u7528<code>with<\/code>\u8bed\u53e5\u53ef\u4ee5\u66f4\u52a0\u4f18\u96c5\u5730\u7ba1\u7406\u6587\u4ef6\u7684\u6253\u5f00\u4e0e\u5173\u95ed\uff0c\u5b83\u80fd\u591f\u5728\u4ee3\u7801\u5757\u6267\u884c\u5b8c\u6bd5\u540e\u81ea\u52a8\u5173\u95ed\u6587\u4ef6\uff0c\u907f\u514d\u624b\u52a8\u8c03\u7528<code>close<\/code>\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><h2>1\u3001<code>with<\/code>\u8bed\u53e5\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528<code>with<\/code>\u8bed\u53e5\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \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<p>    print(content)<\/p>\n<h2><strong>\u5199\u5165\u6587\u4ef6\u5185\u5bb9<\/strong><\/h2>\n<p>with open(&#39;example.txt&#39;, &#39;w&#39;) as file:<\/p>\n<p>    file.write(&#39;Hello, World!&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528<code>with<\/code>\u8bed\u53e5\u6253\u5f00\u6587\u4ef6\uff0c\u5e76\u5728\u4ee3\u7801\u5757\u5185\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\uff0c\u4ee3\u7801\u5757\u7ed3\u675f\u540e\u6587\u4ef6\u4f1a\u81ea\u52a8\u5173\u95ed\u3002<\/p>\n<\/p>\n<p><h2>2\u3001\u7ed3\u5408<code>read<\/code>\u4e0e<code>write<\/code>\u65b9\u6cd5<\/h2>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7ed3\u5408\u8bfb\u53d6\u4e0e\u5199\u5165\u64cd\u4f5c\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \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>new_content = content.replace(&#39;World&#39;, &#39;Python&#39;)<\/p>\n<h2><strong>\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(new_content)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u5e76\u5b58\u50a8\u5728\u53d8\u91cf<code>content<\/code>\u4e2d\uff0c\u7136\u540e\u4f7f\u7528<code>replace<\/code>\u65b9\u6cd5\u4fee\u6539\u5185\u5bb9\uff0c\u6700\u540e\u5c06\u4fee\u6539\u540e\u7684\u5185\u5bb9\u5199\u5165\u6587\u4ef6\u3002<\/p>\n<\/p>\n<h2><strong>\u4e09\u3001\u6587\u4ef6\u7684\u91cd\u547d\u540d\u4e0e\u5220\u9664<\/strong><\/h2>\n<p><p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u91cd\u547d\u540d\u6216\u5220\u9664\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>os<\/code>\u6a21\u5757\u63d0\u4f9b\u7684<code>rename<\/code>\u548c<code>remove<\/code>\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><h2>1\u3001\u91cd\u547d\u540d\u6587\u4ef6<\/h2>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u91cd\u547d\u540d\u6587\u4ef6\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import os<\/p>\n<h2><strong>\u91cd\u547d\u540d\u6587\u4ef6<\/strong><\/h2>\n<p>os.rename(&#39;example.txt&#39;, &#39;new_example.txt&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528<code>os.rename<\/code>\u65b9\u6cd5\u5c06\u6587\u4ef6<code>example.txt<\/code>\u91cd\u547d\u540d\u4e3a<code>new_example.txt<\/code>\u3002<\/p>\n<\/p>\n<p><h2>2\u3001\u5220\u9664\u6587\u4ef6<\/h2>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5220\u9664\u6587\u4ef6\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import os<\/p>\n<h2><strong>\u5220\u9664\u6587\u4ef6<\/strong><\/h2>\n<p>os.remove(&#39;new_example.txt&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u4f7f\u7528<code>os.remove<\/code>\u65b9\u6cd5\u5220\u9664\u6587\u4ef6<code>new_example.txt<\/code>\u3002<\/p>\n<\/p>\n<h2><strong>\u56db\u3001\u793a\u4f8b\u9879\u76ee\uff1a\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u6587\u672c\u7f16\u8f91\u5668<\/strong><\/h2>\n<p><p>\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u6587\u4ef6\u64cd\u4f5c\uff0c\u4e0b\u9762\u5c06\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u6587\u672c\u7f16\u8f91\u5668\uff0c\u80fd\u591f\u8bfb\u53d6\u3001\u4fee\u6539\u548c\u4fdd\u5b58TXT\u6587\u4ef6\u5185\u5bb9\u3002<\/p>\n<\/p>\n<p><h2>1\u3001\u9879\u76ee\u7ed3\u6784<\/h2>\n<\/p>\n<p><p>\u9996\u5148\uff0c\u5b9a\u4e49\u9879\u76ee\u7684\u57fa\u672c\u7ed3\u6784\uff1a<\/p>\n<\/p>\n<p><pre><code>text_editor\/<\/p>\n<p>    \u251c\u2500\u2500 editor.py<\/p>\n<p>    \u2514\u2500\u2500 example.txt<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>2\u3001\u4ee3\u7801\u5b9e\u73b0<\/h2>\n<\/p>\n<p><p>\u5728<code>editor.py<\/code>\u4e2d\u5b9e\u73b0\u6587\u672c\u7f16\u8f91\u5668\u7684\u529f\u80fd\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import os<\/p>\n<p>def read_file(filename):<\/p>\n<p>    &quot;&quot;&quot;\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9&quot;&quot;&quot;<\/p>\n<p>    with open(filename, &#39;r&#39;) as file:<\/p>\n<p>        content = file.read()<\/p>\n<p>    return content<\/p>\n<p>def write_file(filename, content):<\/p>\n<p>    &quot;&quot;&quot;\u5199\u5165\u6587\u4ef6\u5185\u5bb9&quot;&quot;&quot;<\/p>\n<p>    with open(filename, &#39;w&#39;) as file:<\/p>\n<p>        file.write(content)<\/p>\n<p>def rename_file(old_filename, new_filename):<\/p>\n<p>    &quot;&quot;&quot;\u91cd\u547d\u540d\u6587\u4ef6&quot;&quot;&quot;<\/p>\n<p>    os.rename(old_filename, new_filename)<\/p>\n<p>def delete_file(filename):<\/p>\n<p>    &quot;&quot;&quot;\u5220\u9664\u6587\u4ef6&quot;&quot;&quot;<\/p>\n<p>    os.remove(filename)<\/p>\n<p>def m<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>n():<\/p>\n<p>    # \u6587\u4ef6\u540d<\/p>\n<p>    filename = &#39;example.txt&#39;<\/p>\n<p>    # \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9<\/p>\n<p>    content = read_file(filename)<\/p>\n<p>    print(&quot;\u6587\u4ef6\u5185\u5bb9:&quot;)<\/p>\n<p>    print(content)<\/p>\n<p>    # \u4fee\u6539\u6587\u4ef6\u5185\u5bb9<\/p>\n<p>    new_content = content.replace(&#39;Hello&#39;, &#39;Hi&#39;)<\/p>\n<p>    write_file(filename, new_content)<\/p>\n<p>    # \u8bfb\u53d6\u4fee\u6539\u540e\u7684\u5185\u5bb9<\/p>\n<p>    modified_content = read_file(filename)<\/p>\n<p>    print(&quot;\u4fee\u6539\u540e\u7684\u6587\u4ef6\u5185\u5bb9:&quot;)<\/p>\n<p>    print(modified_content)<\/p>\n<p>    # \u91cd\u547d\u540d\u6587\u4ef6<\/p>\n<p>    rename_file(filename, &#39;modified_example.txt&#39;)<\/p>\n<p>    print(f&quot;\u6587\u4ef6\u5df2\u91cd\u547d\u540d\u4e3a &#39;modified_example.txt&#39;&quot;)<\/p>\n<p>    # \u5220\u9664\u6587\u4ef6<\/p>\n<p>    delete_file(&#39;modified_example.txt&#39;)<\/p>\n<p>    print(&quot;\u6587\u4ef6\u5df2\u5220\u9664&quot;)<\/p>\n<p>if __name__ == &quot;__main__&quot;:<\/p>\n<p>    main()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>3\u3001\u8fd0\u884c\u9879\u76ee<\/h2>\n<\/p>\n<p><p>\u5728\u7ec8\u7aef\u4e2d\u8fd0\u884c\u9879\u76ee\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">python editor.py<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd0\u884c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code>\u6587\u4ef6\u5185\u5bb9:<\/p>\n<p>Hello, World!<\/p>\n<p>\u4fee\u6539\u540e\u7684\u6587\u4ef6\u5185\u5bb9:<\/p>\n<p>Hi, World!<\/p>\n<p>\u6587\u4ef6\u5df2\u91cd\u547d\u540d\u4e3a &#39;modified_example.txt&#39;<\/p>\n<p>\u6587\u4ef6\u5df2\u5220\u9664<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u793a\u4f8b\u9879\u76ee\uff0c\u53ef\u4ee5\u66f4\u52a0\u6e05\u6670\u5730\u7406\u89e3\u5982\u4f55\u4f7f\u7528Python\u8fdb\u884c\u6587\u4ef6\u7684\u8bfb\u53d6\u3001\u5199\u5165\u3001\u91cd\u547d\u540d\u548c\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<h2><strong>\u4e94\u3001\u6587\u4ef6\u64cd\u4f5c\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3\u65b9\u6848<\/strong><\/h2>\n<p><p>\u5728\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u5e38\u89c1\u7684\u95ee\u9898\uff0c\u4f8b\u5982\u6587\u4ef6\u4e0d\u5b58\u5728\u3001\u6743\u9650\u4e0d\u8db3\u7b49\u3002\u4e0b\u9762\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u89c1\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<\/p>\n<p><h2>1\u3001\u6587\u4ef6\u4e0d\u5b58\u5728<\/h2>\n<\/p>\n<p><p>\u5728\u5c1d\u8bd5\u8bfb\u53d6\u6216\u5220\u9664\u6587\u4ef6\u65f6\uff0c\u5982\u679c\u6587\u4ef6\u4e0d\u5b58\u5728\u4f1a\u5f15\u53d1<code>FileNotFoundError<\/code>\u5f02\u5e38\u3002\u53ef\u4ee5\u4f7f\u7528<code>try<\/code>&#8211;<code>except<\/code>\u8bed\u53e5\u6765\u6355\u83b7\u8be5\u5f02\u5e38\uff0c\u5e76\u8fdb\u884c\u76f8\u5e94\u5904\u7406\u3002<\/p>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">try:<\/p>\n<p>    with open(&#39;non_existent_file.txt&#39;, &#39;r&#39;) as file:<\/p>\n<p>        content = file.read()<\/p>\n<p>except FileNotFoundError:<\/p>\n<p>    print(&quot;\u6587\u4ef6\u4e0d\u5b58\u5728&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>2\u3001\u6743\u9650\u4e0d\u8db3<\/h2>\n<\/p>\n<p><p>\u5728\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u8db3\u591f\u7684\u6743\u9650\u4f1a\u5f15\u53d1<code>PermissionError<\/code>\u5f02\u5e38\u3002\u53ef\u4ee5\u4f7f\u7528<code>try<\/code>&#8211;<code>except<\/code>\u8bed\u53e5\u6765\u6355\u83b7\u8be5\u5f02\u5e38\uff0c\u5e76\u8fdb\u884c\u76f8\u5e94\u5904\u7406\u3002<\/p>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">try:<\/p>\n<p>    with open(&#39;protected_file.txt&#39;, &#39;w&#39;) as file:<\/p>\n<p>        file.write(&#39;Hello, World!&#39;)<\/p>\n<p>except PermissionError:<\/p>\n<p>    print(&quot;\u6ca1\u6709\u8db3\u591f\u7684\u6743\u9650\u5199\u5165\u6587\u4ef6&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>3\u3001\u6587\u4ef6\u8def\u5f84\u9519\u8bef<\/h2>\n<\/p>\n<p><p>\u5728\u6307\u5b9a\u6587\u4ef6\u8def\u5f84\u65f6\uff0c\u5982\u679c\u8def\u5f84\u4e0d\u6b63\u786e\u4f1a\u5f15\u53d1<code>FileNotFoundError<\/code>\u5f02\u5e38\u3002\u53ef\u4ee5\u4f7f\u7528<code>os.path<\/code>\u6a21\u5757\u63d0\u4f9b\u7684\u65b9\u6cd5\u6765\u68c0\u67e5\u6587\u4ef6\u8def\u5f84\u662f\u5426\u6b63\u786e\u3002<\/p>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import os<\/p>\n<p>filename = &#39;example.txt&#39;<\/p>\n<p>if os.path.exists(filename):<\/p>\n<p>    with open(filename, &#39;r&#39;) as file:<\/p>\n<p>        content = file.read()<\/p>\n<p>else:<\/p>\n<p>    print(&quot;\u6587\u4ef6\u8def\u5f84\u9519\u8bef&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>4\u3001\u5904\u7406\u5927\u6587\u4ef6<\/h2>\n<\/p>\n<p><p>\u5728\u5904\u7406\u5927\u6587\u4ef6\u65f6\uff0c\u76f4\u63a5\u8bfb\u53d6\u6574\u4e2a\u6587\u4ef6\u5185\u5bb9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5185\u5b58\u4e0d\u8db3\u3002\u53ef\u4ee5\u4f7f\u7528\u9010\u884c\u8bfb\u53d6\u7684\u65b9\u5f0f\u6765\u5904\u7406\u5927\u6587\u4ef6\u3002<\/p>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">with open(&#39;large_file.txt&#39;, &#39;r&#39;) as file:<\/p>\n<p>    for line in file:<\/p>\n<p>        print(line.strip())<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u9010\u884c\u8bfb\u53d6\uff0c\u53ef\u4ee5\u6709\u6548\u907f\u514d\u5185\u5b58\u4e0d\u8db3\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n<h2><strong>\u516d\u3001\u603b\u7ed3<\/strong><\/h2>\n<p><p>\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u8be6\u7ec6\u8bb2\u89e3\u4e86Python\u4e2d\u5982\u4f55\u8fdb\u884cTXT\u6587\u4ef6\u7684\u6539\u5199\uff0c\u5305\u62ec\u6587\u4ef6\u7684\u6253\u5f00\u4e0e\u5173\u95ed\u3001\u4f7f\u7528<code>with<\/code>\u8bed\u53e5\u7ba1\u7406\u6587\u4ef6\u4e0a\u4e0b\u6587\u3001\u6587\u4ef6\u7684\u91cd\u547d\u540d\u4e0e\u5220\u9664\u7b49\u5185\u5bb9\u3002\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u6587\u672c\u7f16\u8f91\u5668\u793a\u4f8b\u9879\u76ee\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u7efc\u5408\u8fd0\u7528\u8fd9\u4e9b\u6587\u4ef6\u64cd\u4f5c\u65b9\u6cd5\u3002\u6700\u540e\uff0c\u4ecb\u7ecd\u4e86\u4e00\u4e9b\u5e38\u89c1\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6848\uff0c\u5e2e\u52a9\u8bfb\u8005\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u66f4\u597d\u5730\u5904\u7406\u6587\u4ef6\u64cd\u4f5c\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u8bfb\u8005\u5728\u5b66\u4e60\u548c\u4f7f\u7528Python\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\u65f6\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u6253\u5f00\u548c\u8bfb\u53d6TXT\u6587\u4ef6\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684<code>open()<\/code>\u51fd\u6570\u6765\u6253\u5f00TXT\u6587\u4ef6\u3002\u4f7f\u7528<code>&#39;r&#39;<\/code>\u6a21\u5f0f\u53ef\u4ee5\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\uff0c\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">with open(&#39;example.txt&#39;, &#39;r&#39;) as file:  \n    content = file.read()  \n    print(content)  \n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u786e\u4fdd\u6587\u4ef6\u5728\u8bfb\u53d6\u540e\u4f1a\u81ea\u52a8\u5173\u95ed\uff0c\u907f\u514d\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u8ffd\u52a0\u5185\u5bb9\u5230TXT\u6587\u4ef6\u4e2d\uff1f<\/strong><br \/>\u5982\u679c\u9700\u8981\u5728TXT\u6587\u4ef6\u7684\u672b\u5c3e\u6dfb\u52a0\u5185\u5bb9\uff0c\u53ef\u4ee5\u4f7f\u7528<code>&#39;a&#39;<\/code>\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\u3002\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">with open(&#39;example.txt&#39;, &#39;a&#39;) as file:  \n    file.write(&#39;\\n\u65b0\u6dfb\u52a0\u7684\u5185\u5bb9&#39;)  \n<\/code><\/pre>\n<p>\u8fd9\u6837\u53ef\u4ee5\u5c06\u65b0\u7684\u6587\u672c\u5185\u5bb9\u8ffd\u52a0\u5230\u73b0\u6709\u7684\u6587\u4ef6\u4e2d\uff0c\u800c\u4e0d\u4f1a\u8986\u76d6\u4e4b\u524d\u7684\u5185\u5bb9\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u91cd\u5199TXT\u6587\u4ef6\u7684\u5185\u5bb9\uff1f<\/strong><br \/>\u8981\u91cd\u5199\u4e00\u4e2aTXT\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528<code>&#39;w&#39;<\/code>\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\u3002\u6b64\u6a21\u5f0f\u4f1a\u6e05\u7a7a\u6587\u4ef6\u4e2d\u7684\u539f\u6709\u5185\u5bb9\uff0c\u7136\u540e\u5199\u5165\u65b0\u7684\u5185\u5bb9\u3002\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n<pre><code class=\"language-python\">with open(&#39;example.txt&#39;, &#39;w&#39;) as file:  \n    file.write(&#39;\u8fd9\u662f\u65b0\u7684\u6587\u4ef6\u5185\u5bb9&#39;)  \n<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\uff0c\u4f7f\u7528\u6b64\u6a21\u5f0f\u4f1a\u5220\u9664\u6587\u4ef6\u4e2d\u6240\u6709\u5148\u524d\u7684\u6570\u636e\uff0c\u56e0\u6b64\u5728\u91cd\u5199\u4e4b\u524d\u52a1\u5fc5\u786e\u8ba4\u662f\u5426\u9700\u8981\u4fdd\u7559\u539f\u6709\u5185\u5bb9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8981\u6539\u5199Python\u4e2d\u7684TXT\u6587\u4ef6\uff0c\u4e3b\u8981\u4f7f\u7528Python\u5185\u7f6e\u7684\u6587\u4ef6\u5904\u7406\u51fd\u6570\u548c\u64cd\u4f5c\u7cfb\u7edf\u6a21\u5757\u3002\u53ef\u4ee5\u4f7f\u7528open\u51fd\u6570\u8fdb [&hellip;]","protected":false},"author":3,"featured_media":1176113,"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\/1176109"}],"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=1176109"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1176109\/revisions"}],"predecessor-version":[{"id":1176115,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1176109\/revisions\/1176115"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1176113"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1176109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1176109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1176109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}