{"id":960736,"date":"2024-12-27T03:52:21","date_gmt":"2024-12-26T19:52:21","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/960736.html"},"modified":"2024-12-27T03:52:23","modified_gmt":"2024-12-26T19:52:23","slug":"python%e5%a6%82%e4%bd%95%e5%86%99%e5%88%b0text","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/960736.html","title":{"rendered":"python\u5982\u4f55\u5199\u5230text"},"content":{"rendered":"

\"python\u5982\u4f55\u5199\u5230text\"<\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165\u6587\u672c\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u3001\u4f7f\u7528with<\/code>\u8bed\u53e5\u7ba1\u7406\u6587\u4ef6\u8d44\u6e90\u3001\u9009\u62e9\u9002\u5f53\u7684\u6587\u4ef6\u6a21\u5f0f\uff08\u5982\u5199\u5165'w'\u3001\u8ffd\u52a0'a'\uff09\u7b49\u3002\u4f7f\u7528with<\/code>\u8bed\u53e5\u53ef\u4ee5\u786e\u4fdd\u6587\u4ef6\u5728\u5199\u64cd\u4f5c\u5b8c\u6210\u540e\u88ab\u6b63\u786e\u5173\u95ed\uff0c\u4ece\u800c\u51cf\u5c11\u8d44\u6e90\u6cc4\u6f0f\u7684\u98ce\u9669\u3002\u4ee5\u4e0b\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u793a\u4f8b\u4ee3\u7801\u3002<\/strong><\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528open()<\/code>\u51fd\u6570<\/p>\n<\/p>\n

open()<\/code>\u51fd\u6570\u662fPython\u4e2d\u6700\u57fa\u672c\u7684\u6587\u4ef6\u64cd\u4f5c\u51fd\u6570\u4e4b\u4e00\uff0c\u7528\u4e8e\u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u8bfb\u5199\u3002\u4f7f\u7528open()<\/code>\u51fd\u6570\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u6587\u4ef6\u540d\u548c\u6a21\u5f0f\u3002<\/p>\n<\/p>\n

    \n
  1. \u4f7f\u7528\u5199\u5165\u6a21\u5f0f<\/strong><\/li>\n<\/ol>\n

    \u5728\u5199\u5165\u6a21\u5f0f\u4e0b\uff0c\u6587\u4ef6\u4e2d\u7684\u5185\u5bb9\u5c06\u88ab\u6e05\u7a7a\uff0c\u4efb\u4f55\u65b0\u5199\u5165\u7684\u5185\u5bb9\u5c06\u8986\u76d6\u539f\u6709\u7684\u5185\u5bb9\u3002\u9002\u7528\u4e8e\u9700\u8981\u5b8c\u5168\u66f4\u65b0\u6587\u4ef6\u5185\u5bb9\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n

    # \u6253\u5f00\u6587\u4ef6\u4ee5\u8fdb\u884c\u5199\u5165<\/p>\n
    file = open('example.txt', 'w')<\/p>\n
    \u5199\u5165\u5185\u5bb9<\/strong><\/h2>\n
    file.write('Hello, World!\\n')<\/p>\n
    file.write('This is a new line.')<\/p>\n
    \u5173\u95ed\u6587\u4ef6<\/strong><\/h2>\n
    file.close()<\/p>\n
    <\/code><\/pre>\n<\/p>\n
      \n
    1. \u4f7f\u7528\u8ffd\u52a0\u6a21\u5f0f<\/strong><\/li>\n<\/ol>\n
      \u5728\u8ffd\u52a0\u6a21\u5f0f\u4e0b\uff0c\u65b0\u7684\u5185\u5bb9\u5c06\u88ab\u6dfb\u52a0\u5230\u6587\u4ef6\u672b\u5c3e\uff0c\u800c\u4e0d\u4f1a\u8986\u76d6\u73b0\u6709\u7684\u5185\u5bb9\u3002\u9002\u7528\u4e8e\u9700\u8981\u5728\u73b0\u6709\u6587\u4ef6\u4e2d\u8ffd\u52a0\u65b0\u5185\u5bb9\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
      # \u6253\u5f00\u6587\u4ef6\u4ee5\u8fdb\u884c\u8ffd\u52a0<\/p>\n
      file = open('example.txt', 'a')<\/p>\n
      \u8ffd\u52a0\u5185\u5bb9<\/strong><\/h2>\n
      file.write('\\nThis is an appended line.')<\/p>\n
      \u5173\u95ed\u6587\u4ef6<\/strong><\/h2>\n
      file.close()<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4e8c\u3001\u4f7f\u7528with<\/code>\u8bed\u53e5<\/p>\n<\/p>\n
      with<\/code>\u8bed\u53e5\u7528\u4e8e\u81ea\u52a8\u7ba1\u7406\u6587\u4ef6\u8d44\u6e90\uff0c\u786e\u4fdd\u6587\u4ef6\u5728\u4f7f\u7528\u540e\u88ab\u6b63\u786e\u5173\u95ed\u3002\u901a\u8fc7\u4f7f\u7528with<\/code>\u8bed\u53e5\uff0c\u53ef\u4ee5\u907f\u514d\u5fd8\u8bb0\u5173\u95ed\u6587\u4ef6\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n
        \n
      1. \u5199\u5165\u6a21\u5f0f\u4e0ewith<\/code>\u8bed\u53e5<\/strong><\/li>\n<\/ol>\n
        # \u4f7f\u7528with\u8bed\u53e5\u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u5199\u5165<\/p>\n
        with open('example.txt', 'w') as file:<\/p>\n
            # \u5199\u5165\u5185\u5bb9<\/p>\n
            file.write('Hello, World!\\n')<\/p>\n
            file.write('This is another new line.')<\/p>\n
        <\/code><\/pre>\n<\/p>\n
          \n
        1. \u8ffd\u52a0\u6a21\u5f0f\u4e0ewith<\/code>\u8bed\u53e5<\/strong><\/li>\n<\/ol>\n
          # \u4f7f\u7528with\u8bed\u53e5\u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u8ffd\u52a0<\/p>\n
          with open('example.txt', 'a') as file:<\/p>\n
              # \u8ffd\u52a0\u5185\u5bb9<\/p>\n
              file.write('\\nThis is another appended line.')<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u4e09\u3001\u4f7f\u7528\u5176\u4ed6\u5e93\u8fdb\u884c\u5199\u5165<\/p>\n<\/p>\n
          \u9664\u4e86\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\uff0cPython\u4e2d\u8fd8\u6709\u5176\u4ed6\u5e93\u53ef\u4ee5\u8fdb\u884c\u6587\u4ef6\u5199\u5165\u64cd\u4f5c\uff0c\u5982pandas<\/code>\u548ccsv<\/code>\u3002<\/p>\n<\/p>\n
            \n
          1. \u4f7f\u7528pandas\u5199\u5165\u6570\u636e\u5230CSV\u6587\u4ef6<\/strong><\/li>\n<\/ol>\n
            pandas<\/code>\u5e93\u975e\u5e38\u9002\u5408\u7528\u4e8e\u5904\u7406\u548c\u5b58\u50a8\u8868\u683c\u6570\u636e\u3002<\/p>\n<\/p>\n
            import pandas as pd<\/p>\n
            \u521b\u5efa\u6570\u636e\u6846<\/strong><\/h2>\n
            data = {'Name': ['Alice', 'Bob', 'Charlie'], 'Age': [25, 30, 35]}<\/p>\n
            df = pd.DataFrame(data)<\/p>\n
            \u5199\u5165\u6570\u636e\u5230CSV\u6587\u4ef6<\/strong><\/h2>\n
            df.to_csv('people.csv', index=False)<\/p>\n
            <\/code><\/pre>\n<\/p>\n
              \n
            1. \u4f7f\u7528csv\u6a21\u5757\u5199\u5165\u6570\u636e<\/strong><\/li>\n<\/ol>\n
              csv<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u65b9\u4fbf\u7684\u63a5\u53e3\u7528\u4e8eCSV\u6587\u4ef6\u7684\u8bfb\u5199\u3002<\/p>\n<\/p>\n
              import csv<\/p>\n
              \u51c6\u5907\u6570\u636e<\/strong><\/h2>\n
              data = [['Name', 'Age'], ['Alice', 25], ['Bob', 30], ['Charlie', 35]]<\/p>\n
              \u5199\u5165\u6570\u636e\u5230CSV\u6587\u4ef6<\/strong><\/h2>\n
              with open('people.csv', 'w', newline='') as file:<\/p>\n
                  writer = csv.writer(file)<\/p>\n
                  writer.writerows(data)<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u56db\u3001\u5904\u7406\u5927\u6587\u4ef6<\/p>\n<\/p>\n
              \u5bf9\u4e8e\u9700\u8981\u5904\u7406\u7684\u5927\u578b\u6587\u672c\u6587\u4ef6\uff0c\u9010\u884c\u5199\u5165\u53ef\u80fd\u66f4\u4e3a\u9ad8\u6548\u3002\u53ef\u4ee5\u901a\u8fc7\u5faa\u73af\u6765\u9010\u884c\u5199\u5165\u5185\u5bb9\u3002<\/p>\n<\/p>\n
              # \u51c6\u5907\u5927\u91cf\u6570\u636e<\/p>\n
              lines = ['This is line {}\\n'.format(i) for i in range(1, 1001)]<\/p>\n
              \u9010\u884c\u5199\u5165\u6570\u636e<\/strong><\/h2>\n
              with open('largefile.txt', 'w') as file:<\/p>\n
                  for line in lines:<\/p>\n
                      file.write(line)<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u4e94\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316<\/p>\n<\/p>\n
              \u5728\u5199\u5165\u6587\u4ef6\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u6765\u52a8\u6001\u751f\u6210\u5185\u5bb9\u3002<\/p>\n<\/p>\n
              # \u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u5199\u5165<\/p>\n
              with open('formatted.txt', 'w') as file:<\/p>\n
                  # \u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u5199\u5165<\/p>\n
                  for i in range(1, 6):<\/p>\n
                      file.write(f'This is formatted line {i}\\n')<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u603b\u7ed3\uff1a<\/p>\n<\/p>\n
              \u5728Python\u4e2d\u5199\u5165\u6587\u672c\u6587\u4ef6\u662f\u4e00\u4e2a\u5e38\u89c1\u4e14\u5bb9\u6613\u5b9e\u73b0\u7684\u4efb\u52a1\u3002\u901a\u8fc7\u5408\u7406\u9009\u62e9\u6587\u4ef6\u6a21\u5f0f\uff08\u5199\u5165\u6216\u8ffd\u52a0\uff09\uff0c\u5e76\u5229\u7528with<\/code>\u8bed\u53e5\u786e\u4fdd\u6587\u4ef6\u8d44\u6e90\u7684\u6b63\u786e\u7ba1\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u8fdb\u884c\u6587\u4ef6\u64cd\u4f5c\u3002\u5bf9\u4e8e\u8868\u683c\u6570\u636e\uff0cpandas<\/code>\u548ccsv<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u652f\u6301\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u9700\u6c42\u573a\u666f\u3002\u540c\u65f6\uff0c\u5bf9\u4e8e\u5927\u578b\u6587\u4ef6\uff0c\u9010\u884c\u5199\u5165\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\uff0c\u907f\u514d\u5185\u5b58\u5360\u7528\u8fc7\u591a\u3002\u901a\u8fc7\u7ed3\u5408\u4f7f\u7528\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u6280\u672f\uff0c\u53ef\u4ee5\u7075\u6d3b\u5730\u751f\u6210\u548c\u5199\u5165\u52a8\u6001\u5185\u5bb9\u3002<\/p>\n<\/p>\n
              \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
               \u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u548c\u5199\u5165\u6587\u672c\u6587\u4ef6\uff1f<\/strong>
              \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u6765\u521b\u5efa\u5e76\u5199\u5165\u6587\u672c\u6587\u4ef6\u3002\u4f7f\u7528\u6a21\u5f0f'w'<\/code>\uff08\u5199\u5165\uff09\u6216'a'<\/code>\uff08\u8ffd\u52a0\uff09\u53ef\u4ee5\u6253\u5f00\u6587\u4ef6\u3002\u5728\u6253\u5f00\u6587\u4ef6\u540e\uff0c\u4f7f\u7528write()<\/code>\u65b9\u6cd5\u5c06\u5185\u5bb9\u5199\u5165\u6587\u4ef6\u3002\u4f8b\u5982\uff1a  <\/p>\n
              with open('example.txt', 'w') as file:\n    file.write('Hello, World!')\n<\/code><\/pre>\n
              \u8fd9\u6bb5\u4ee3\u7801\u5c06\u5728\u5f53\u524d\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aexample.txt<\/code>\u7684\u6587\u4ef6\uff0c\u5e76\u5199\u5165\u201cHello, World!\u201d\u3002<\/p>\n
              \u4f7f\u7528Python\u5199\u5165\u6587\u672c\u6587\u4ef6\u65f6\uff0c\u5982\u4f55\u5904\u7406\u7f16\u7801\u95ee\u9898\uff1f<\/strong>
              \u5728\u5199\u5165\u6587\u672c\u6587\u4ef6\u65f6\uff0c\u7279\u522b\u662f\u5305\u542b\u975eASCII\u5b57\u7b26\u7684\u5185\u5bb9\uff0c\u6307\u5b9a\u7f16\u7801\u975e\u5e38\u91cd\u8981\u3002\u53ef\u4ee5\u5728open()<\/code>\u51fd\u6570\u4e2d\u4f7f\u7528encoding<\/code>\u53c2\u6570\u6765\u786e\u4fdd\u6b63\u786e\u5199\u5165\u3002\u4f8b\u5982\uff1a  <\/p>\n
              with open('example.txt', 'w', encoding='utf-8') as file:\n    file.write('\u4f60\u597d\uff0c\u4e16\u754c\uff01')\n<\/code><\/pre>\n
              \u8fd9\u5c06\u521b\u5efa\u4e00\u4e2aUTF-8\u7f16\u7801\u7684\u6587\u672c\u6587\u4ef6\uff0c\u786e\u4fdd\u4e2d\u6587\u5b57\u7b26\u6b63\u786e\u5b58\u50a8\u3002<\/p>\n
              \u5982\u679c\u9700\u8981\u5728Python\u4e2d\u5199\u5165\u591a\u884c\u6587\u672c\uff0c\u5e94\u8be5\u5982\u4f55\u64cd\u4f5c\uff1f<\/strong>
              \u4e3a\u4e86\u5199\u5165\u591a\u884c\u6587\u672c\uff0c\u53ef\u4ee5\u4f7f\u7528writelines()<\/code>\u65b9\u6cd5\u6216\u5728write()<\/code>\u65b9\u6cd5\u4e2d\u6dfb\u52a0\u6362\u884c\u7b26\\n<\/code>\u3002\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n
              lines = ['\u7b2c\u4e00\u884c\\n', '\u7b2c\u4e8c\u884c\\n', '\u7b2c\u4e09\u884c\\n']\nwith open('example.txt', 'w') as file:\n    file.writelines(lines)\n<\/code><\/pre>\n
              \u6b64\u4ee3\u7801\u5c06\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4e09\u884c\u6587\u672c\u7684\u6587\u4ef6\uff0c\u6bcf\u884c\u4e4b\u95f4\u4ee5\u6362\u884c\u7b26\u5206\u9694\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165\u6587\u672c\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684open()\u51fd\u6570\u3001\u4f7f\u7528with\u8bed\u53e5\u7ba1\u7406 […]","protected":false},"author":3,"featured_media":960738,"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\/960736"}],"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=960736"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/960736\/revisions"}],"predecessor-version":[{"id":960739,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/960736\/revisions\/960739"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/960738"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=960736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=960736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=960736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}