{"id":1086947,"date":"2025-01-08T13:30:33","date_gmt":"2025-01-08T05:30:33","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1086947.html"},"modified":"2025-01-08T13:30:35","modified_gmt":"2025-01-08T05:30:35","slug":"python%e5%a6%82%e4%bd%95%e5%b0%86%e6%95%b0%e6%8d%ae%e5%86%99%e5%85%a5csv%e6%96%87%e4%bb%b6-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1086947.html","title":{"rendered":"python\u5982\u4f55\u5c06\u6570\u636e\u5199\u5165csv\u6587\u4ef6"},"content":{"rendered":"

\"python\u5982\u4f55\u5c06\u6570\u636e\u5199\u5165csv\u6587\u4ef6\"<\/p>\n

\u8981\u5c06\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528Python\u4e2d\u7684csv\u6a21\u5757\u3001pandas\u5e93\u3001\u6253\u5f00\u6587\u4ef6\u3001\u5199\u5165\u6570\u636e\u3002<\/strong> \u5176\u4e2d\uff0c\u4f7f\u7528csv\u6a21\u5757\u662f\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u662fPython\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u65e0\u9700\u5b89\u88c5\u5176\u4ed6\u4f9d\u8d56\u3002\u4e0b\u9762\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528csv\u6a21\u5757<\/p>\n<\/p>\n

Python\u7684csv\u6a21\u5757\u63d0\u4f9b\u4e86\u5904\u7406CSV\u6587\u4ef6\u7684\u529f\u80fd\uff0c\u5305\u62ec\u8bfb\u53d6\u548c\u5199\u5165\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528csv\u6a21\u5757\u5c06\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\u7684\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n

    \n
  1. \u5bfc\u5165csv\u6a21\u5757\u3002<\/li>\n
  2. \u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u4ee5\u5199\u6a21\u5f0f\uff08'w'\uff09\u8fdb\u884c\u5199\u5165\u64cd\u4f5c\u3002<\/li>\n
  3. \u521b\u5efacsv.writer\u5bf9\u8c61\u3002<\/li>\n
  4. \u4f7f\u7528writerow()\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\u3002<\/li>\n<\/ol>\n

    import csv<\/p>\n
    \u6570\u636e<\/strong><\/h2>\n
    data = [<\/p>\n
        ['Name', 'Age', 'City'],<\/p>\n
        ['Alice', 30, 'New York'],<\/p>\n
        ['Bob', 25, 'Los Angeles'],<\/p>\n
        ['Charlie', 35, 'Chicago']<\/p>\n
    ]<\/p>\n
    \u6253\u5f00\u6587\u4ef6\u5e76\u5199\u5165\u6570\u636e<\/strong><\/h2>\n
    with open('output.csv', 'w', newline='') as file:<\/p>\n
        writer = csv.writer(file)<\/p>\n
        for row in data:<\/p>\n
            writer.writerow(row)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e8c\u3001\u4f7f\u7528pandas\u5e93<\/p>\n<\/p>\n
    Pandas\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u6570\u636e\u5206\u6790\u5e93\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u522b\u7684\u64cd\u4f5cCSV\u6587\u4ef6\u7684\u529f\u80fd\u3002\u4f7f\u7528pandas\u5e93\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u5c06\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528pandas\u5e93\u5c06\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\u7684\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n
      \n
    1. \u5bfc\u5165pandas\u5e93\u3002<\/li>\n
    2. \u521b\u5efa\u4e00\u4e2aDataFrame\u5bf9\u8c61\u3002<\/li>\n
    3. \u4f7f\u7528DataFrame\u7684to_csv()\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\u3002<\/li>\n<\/ol>\n
      import pandas as pd<\/p>\n
      \u6570\u636e<\/strong><\/h2>\n
      data = {<\/p>\n
          'Name': ['Alice', 'Bob', 'Charlie'],<\/p>\n
          'Age': [30, 25, 35],<\/p>\n
          'City': ['New York', 'Los Angeles', 'Chicago']<\/p>\n
      }<\/p>\n
      \u521b\u5efaDataFrame\u5bf9\u8c61<\/strong><\/h2>\n
      df = pd.DataFrame(data)<\/p>\n
      \u5199\u5165CSV\u6587\u4ef6<\/strong><\/h2>\n
      df.to_csv('output.csv', index=False)<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4e09\u3001\u6253\u5f00\u6587\u4ef6<\/p>\n<\/p>\n
      \u65e0\u8bba\u662f\u4f7f\u7528csv\u6a21\u5757\u8fd8\u662fpandas\u5e93\uff0c\u90fd\u9700\u8981\u5148\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u3002\u4f7f\u7528open()\u51fd\u6570\u53ef\u4ee5\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\uff0c\u4ee5\u4fbf\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002\u6253\u5f00\u6587\u4ef6\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u6587\u4ef6\u540d\u548c\u6a21\u5f0f\uff08\u5982'r'\u8868\u793a\u8bfb\uff0c'w'\u8868\u793a\u5199\uff0c'a'\u8868\u793a\u8ffd\u52a0\uff09\u3002<\/p>\n<\/p>\n
      # \u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u5199\u5165\u64cd\u4f5c<\/p>\n
      with open('output.csv', 'w', newline='') as file:<\/p>\n
          # \u5728\u6b64\u5904\u8fdb\u884c\u5199\u5165\u64cd\u4f5c<\/p>\n
          pass<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u56db\u3001\u5199\u5165\u6570\u636e<\/p>\n<\/p>\n
      \u5728\u6253\u5f00\u6587\u4ef6\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u65b9\u6cd5\u5c06\u6570\u636e\u5199\u5165\u6587\u4ef6\u3002\u5bf9\u4e8ecsv\u6a21\u5757\uff0c\u53ef\u4ee5\u4f7f\u7528writerow()\u65b9\u6cd5\u5c06\u6570\u636e\u9010\u884c\u5199\u5165\u3002\u5bf9\u4e8epandas\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528to_csv()\u65b9\u6cd5\u5c06\u6574\u4e2aDataFrame\u5bf9\u8c61\u5199\u5165CSV\u6587\u4ef6\u3002<\/p>\n<\/p>\n
      # \u4f7f\u7528csv\u6a21\u5757\u5199\u5165\u6570\u636e<\/p>\n
      import csv<\/p>\n
      data = [<\/p>\n
          ['Name', 'Age', 'City'],<\/p>\n
          ['Alice', 30, 'New York'],<\/p>\n
          ['Bob', 25, 'Los Angeles'],<\/p>\n
          ['Charlie', 35, 'Chicago']<\/p>\n
      ]<\/p>\n
      with open('output.csv', 'w', newline='') as file:<\/p>\n
          writer = csv.writer(file)<\/p>\n
          for row in data:<\/p>\n
              writer.writerow(row)<\/p>\n
      \u4f7f\u7528pandas\u5e93\u5199\u5165\u6570\u636e<\/strong><\/h2>\n
      import pandas as pd<\/p>\n
      data = {<\/p>\n
          'Name': ['Alice', 'Bob', 'Charlie'],<\/p>\n
          'Age': [30, 25, 35],<\/p>\n
          'City': ['New York', 'Los Angeles', 'Chicago']<\/p>\n
      }<\/p>\n
      df = pd.DataFrame(data)<\/p>\n
      df.to_csv('output.csv', index=False)<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4e94\u3001\u603b\u7ed3<\/p>\n<\/p>\n
      \u5199\u5165CSV\u6587\u4ef6\u662f\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u4e2d\u7684\u5e38\u89c1\u4efb\u52a1\u3002\u4f7f\u7528Python\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u5b9e\u73b0\u5c06\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\u7684\u64cd\u4f5c\u3002csv\u6a21\u5757\u3001pandas\u5e93\u3001\u6253\u5f00\u6587\u4ef6\u3001\u5199\u5165\u6570\u636e<\/strong>\u662f\u5b9e\u73b0\u8fd9\u4e00\u4efb\u52a1\u7684\u5173\u952e\u6b65\u9aa4\u3002\u638c\u63e1\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u4f60\u5728\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u8fc7\u7a0b\u4e2d\u66f4\u52a0\u9ad8\u6548\u5730\u5de5\u4f5c\u3002<\/p>\n<\/p>\n
      \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
       \u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u65b0\u7684CSV\u6587\u4ef6\u5e76\u5199\u5165\u6570\u636e\uff1f<\/strong>
      \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684csv<\/code>\u6a21\u5757\u521b\u5efa\u65b0\u7684CSV\u6587\u4ef6\u5e76\u5199\u5165\u6570\u636e\u3002\u9996\u5148\uff0c\u4f7f\u7528open()<\/code>\u51fd\u6570\u4ee5\u5199\u5165\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\uff0c\u7136\u540e\u521b\u5efa\u4e00\u4e2aCSV\u5199\u5165\u5668\u5bf9\u8c61\u3002\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528writerow()<\/code>\u6216writerows()<\/code>\u65b9\u6cd5\u5c06\u5355\u884c\u6216\u591a\u884c\u6570\u636e\u5199\u5165\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
      import csv\n\ndata = [['\u59d3\u540d', '\u5e74\u9f84', '\u57ce\u5e02'], ['\u5f20\u4e09', 25, '\u5317\u4eac'], ['\u674e\u56db', 30, '\u4e0a\u6d77']]\n\nwith open('output.csv', mode='w', newline='') as file:\n    writer = csv.writer(file)\n    writer.writerows(data)\n<\/code><\/pre>\n
      \u5728\u5199\u5165CSV\u6587\u4ef6\u65f6\u5982\u4f55\u5904\u7406\u7279\u6b8a\u5b57\u7b26\uff1f<\/strong>
      \u5904\u7406\u7279\u6b8a\u5b57\u7b26\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528csv<\/code>\u6a21\u5757\u7684\u53c2\u6570\u6765\u786e\u4fdd\u6570\u636e\u7684\u6b63\u786e\u6027\u3002\u4f8b\u5982\uff0c\u4f7f\u7528quotechar<\/code>\u53c2\u6570\u6765\u6307\u5b9a\u7528\u4e8e\u5f15\u53f7\u7684\u5b57\u7b26\uff0c\u6216\u4f7f\u7528quoting<\/code>\u53c2\u6570\u6765\u8bbe\u7f6e\u4f55\u65f6\u5f15\u7528\u5b57\u6bb5\u3002\u8fd9\u6837\u53ef\u4ee5\u6709\u6548\u907f\u514d\u7531\u4e8e\u7279\u6b8a\u5b57\u7b26\u5bfc\u81f4\u7684\u6570\u636e\u683c\u5f0f\u9519\u8bef\u3002<\/p>\n
      \u5982\u4f55\u5728Python\u4e2d\u8ffd\u52a0\u6570\u636e\u5230\u5df2\u5b58\u5728\u7684CSV\u6587\u4ef6\uff1f<\/strong>
      \u8981\u5411\u5df2\u5b58\u5728\u7684CSV\u6587\u4ef6\u8ffd\u52a0\u6570\u636e\uff0c\u53ef\u4ee5\u4ee5\u8ffd\u52a0\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6\u5e76\u4f7f\u7528\u76f8\u540c\u7684csv<\/code>\u6a21\u5757\u3002\u53ea\u9700\u5c06\u6253\u5f00\u6a21\u5f0f\u66f4\u6539\u4e3a'a'<\/code>\uff0c\u7136\u540e\u4f7f\u7528writerow()<\/code>\u6216writerows()<\/code>\u65b9\u6cd5\u6dfb\u52a0\u65b0\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
      with open('output.csv', mode='a', newline='') as file:\n    writer = csv.writer(file)\n    writer.writerow(['\u738b\u4e94', 28, '\u5e7f\u5dde'])\n<\/code><\/pre>\n
      \u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7075\u6d3b\u5730\u5904\u7406CSV\u6587\u4ef6\u7684\u521b\u5efa\u548c\u6570\u636e\u5199\u5165\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8981\u5c06\u6570\u636e\u5199\u5165CSV\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528Python\u4e2d\u7684csv\u6a21\u5757\u3001pandas\u5e93\u3001\u6253\u5f00\u6587\u4ef6\u3001\u5199\u5165\u6570\u636e\u3002 \u5176\u4e2d\uff0c\u4f7f\u7528c […]","protected":false},"author":3,"featured_media":1086953,"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\/1086947"}],"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=1086947"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1086947\/revisions"}],"predecessor-version":[{"id":1086956,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1086947\/revisions\/1086956"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1086953"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1086947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1086947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1086947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}