{"id":1038370,"date":"2024-12-31T12:23:28","date_gmt":"2024-12-31T04:23:28","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1038370.html"},"modified":"2024-12-31T12:23:30","modified_gmt":"2024-12-31T04:23:30","slug":"%e5%a6%82%e4%bd%95%e7%94%a8python%e5%af%b9%e8%a1%a8%e6%a0%bc%e8%bf%9b%e8%a1%8c%e4%bf%ae%e6%94%b9%e5%af%86%e7%a0%81","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1038370.html","title":{"rendered":"\u5982\u4f55\u7528python\u5bf9\u8868\u683c\u8fdb\u884c\u4fee\u6539\u5bc6\u7801"},"content":{"rendered":"

\"\u5982\u4f55\u7528python\u5bf9\u8868\u683c\u8fdb\u884c\u4fee\u6539\u5bc6\u7801\"<\/p>\n

\u4f7f\u7528Python\u5bf9\u8868\u683c\u8fdb\u884c\u4fee\u6539\u3001\u66f4\u65b0\u3001\u6dfb\u52a0\u6570\u636e\u65f6\uff0c\u4e3b\u8981\u4f9d\u8d56\u4e8e\u4e00\u4e9b\u5f3a\u5927\u7684\u5e93\uff0c\u5982pandas\u3001openpyxl\u3001xlrd\u7b49\uff0c\u5177\u4f53\u64cd\u4f5c\u5305\u62ec\u8bfb\u53d6\u8868\u683c\u3001\u4fee\u6539\u5185\u5bb9\u3001\u4fdd\u5b58\u4fee\u6539\u7b49\u6b65\u9aa4\u3002<\/strong> \u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u5e93\u6765\u5bf9\u8868\u683c\u8fdb\u884c\u4fee\u6539\uff0c\u5e76\u91cd\u70b9\u8bb2\u89e3\u5982\u4f55\u4f7f\u7528pandas\u548copenpyxl\u5bf9Excel\u8868\u683c\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u5b89\u88c5\u5fc5\u8981\u7684Python\u5e93<\/h2>\n<\/p>\n

\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u9700\u8981\u786e\u4fdd\u5b89\u88c5\u4e86\u76f8\u5173\u7684Python\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528pip\u6765\u5b89\u88c5\u8fd9\u4e9b\u5e93\uff1a<\/p>\n<\/p>\n

pip install pandas openpyxl xlrd<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528pandas\u8bfb\u53d6\u548c\u4fee\u6539\u8868\u683c<\/h2>\n<\/p>\n
pandas\u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u6570\u636e\u5904\u7406\u5e93\uff0c\u80fd\u591f\u65b9\u4fbf\u5730\u8bfb\u53d6\u3001\u4fee\u6539\u548c\u4fdd\u5b58\u8868\u683c\u6570\u636e\u3002<\/p>\n<\/p>\n
1. \u8bfb\u53d6\u8868\u683c<\/h3>\n<\/p>\n
\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u8bfb\u53d6Excel\u8868\u683c\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528pandas\u7684read_excel<\/code>\u51fd\u6570\uff1a<\/p>\n<\/p>\n
import pandas as pd<\/p>\n
\u8bfb\u53d6Excel\u8868\u683c<\/strong><\/h2>\n
df = pd.read_excel('example.xlsx')<\/p>\n
print(df)<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u4fee\u6539\u8868\u683c\u6570\u636e<\/h3>\n<\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5305\u542b\u7528\u6237\u540d\u548c\u5bc6\u7801\u7684Excel\u8868\u683c\uff0c\u5e76\u4e14\u6211\u4eec\u60f3\u8981\u4fee\u6539\u67d0\u4e2a\u7528\u6237\u7684\u5bc6\u7801\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n
# \u4fee\u6539\u67d0\u4e2a\u7528\u6237\u7684\u5bc6\u7801<\/p>\n
username_to_modify = 'user1'<\/p>\n
new_password = 'new_password123'<\/p>\n
\u627e\u5230\u8be5\u7528\u6237\u5e76\u4fee\u6539\u5bc6\u7801<\/strong><\/h2>\n
df.loc[df['username'] == username_to_modify, 'password'] = new_password<\/p>\n
print(df)<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u4fdd\u5b58\u4fee\u6539\u540e\u7684\u8868\u683c<\/h3>\n<\/p>\n
\u5b8c\u6210\u4fee\u6539\u540e\uff0c\u9700\u8981\u5c06\u4fee\u6539\u540e\u7684\u6570\u636e\u4fdd\u5b58\u56deExcel\u8868\u683c\uff1a<\/p>\n<\/p>\n
# \u4fdd\u5b58\u4fee\u6539\u540e\u7684\u8868\u683c<\/p>\n
df.to_excel('example_modified.xlsx', index=False)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528openpyxl\u5bf9\u8868\u683c\u8fdb\u884c\u66f4\u590d\u6742\u7684\u4fee\u6539<\/h2>\n<\/p>\n
openpyxl\u662f\u4e00\u4e2a\u4e13\u95e8\u7528\u4e8e\u8bfb\u5199Excel 2010 xlsx\/xlsm\/xltx\/xltm\u6587\u4ef6\u7684\u5e93\uff0c\u9664\u4e86\u5e38\u89c4\u7684\u6570\u636e\u4fee\u6539\uff0c\u8fd8\u53ef\u4ee5\u8fdb\u884c\u683c\u5f0f\u5316\u3001\u6dfb\u52a0\u516c\u5f0f\u7b49\u66f4\u590d\u6742\u7684\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
1. \u8bfb\u53d6Excel\u8868\u683c<\/h3>\n<\/p>\n
from openpyxl import load_workbook<\/p>\n
\u8bfb\u53d6Excel\u5de5\u4f5c\u7c3f<\/strong><\/h2>\n
wb = load_workbook('example.xlsx')<\/p>\n
ws = wb.active<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u4fee\u6539\u8868\u683c\u6570\u636e<\/h3>\n<\/p>\n
\u901a\u8fc7openpyxl\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u64cd\u4f5c\u8868\u683c\u4e2d\u7684\u6570\u636e\uff0c\u4f8b\u5982\u4fee\u6539\u5355\u5143\u683c\u7684\u503c\uff1a<\/p>\n<\/p>\n
# \u4fee\u6539\u67d0\u4e2a\u7528\u6237\u7684\u5bc6\u7801<\/p>\n
for row in ws.iter_rows(min_row=2, max_row=ws.max_row, min_col=1, max_col=2):<\/p>\n
    username_cell, password_cell = row<\/p>\n
    if username_cell.value == 'user1':<\/p>\n
        password_cell.value = 'new_password123'<\/p>\n
        break<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. \u4fdd\u5b58\u4fee\u6539\u540e\u7684\u8868\u683c<\/h3>\n<\/p>\n
# \u4fdd\u5b58\u4fee\u6539\u540e\u7684\u8868\u683c<\/p>\n
wb.save('example_modified.xlsx')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u5904\u7406\u5927\u8868\u683c\u548c\u591a\u8868\u683c<\/h2>\n<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8868\u683c\u53ef\u80fd\u4f1a\u975e\u5e38\u5927\uff0c\u6216\u8005\u4e00\u4e2a\u6587\u4ef6\u4e2d\u5305\u542b\u591a\u4e2a\u8868\u683c\u3002\u8fd9\u65f6\uff0c\u6211\u4eec\u9700\u8981\u4e00\u4e9b\u6280\u5de7\u6765\u9ad8\u6548\u5730\u5904\u7406\u8fd9\u4e9b\u60c5\u51b5\u3002<\/p>\n<\/p>\n
1. \u5904\u7406\u5927\u8868\u683c<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u975e\u5e38\u5927\u7684\u8868\u683c\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5185\u5b58\u4e0d\u8db3\u7684\u95ee\u9898\u3002\u8fd9\u65f6\u53ef\u4ee5\u8003\u8651\u5206\u6279\u6b21\u8bfb\u53d6\u548c\u4fee\u6539\u6570\u636e\uff1a<\/p>\n<\/p>\n
# \u5206\u6279\u6b21\u8bfb\u53d6\u5927\u8868\u683c<\/p>\n
chunk_size = 10000  # \u6bcf\u6b21\u8bfb\u53d610000\u884c<\/p>\n
chunks = pd.read_excel('large_example.xlsx', chunksize=chunk_size)<\/p>\n
for chunk in chunks:<\/p>\n
    # \u4fee\u6539\u6570\u636e<\/p>\n
    chunk.loc[chunk['username'] == 'user1', 'password'] = 'new_password123'<\/p>\n
    # \u4fdd\u5b58\u6570\u636e\u5230\u65b0\u7684Excel\u6587\u4ef6<\/p>\n
    with pd.ExcelWriter('large_example_modified.xlsx', mode='a', if_sheet_exists='overlay') as writer:<\/p>\n
        chunk.to_excel(writer, index=False)<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u5904\u7406\u591a\u8868\u683c<\/h3>\n<\/p>\n
\u5982\u679c\u4e00\u4e2aExcel\u6587\u4ef6\u4e2d\u5305\u542b\u591a\u4e2a\u8868\u683c\uff0c\u53ef\u4ee5\u4f7f\u7528pandas\u8bfb\u53d6\u6240\u6709\u8868\u683c\uff0c\u5e76\u5206\u522b\u8fdb\u884c\u5904\u7406\uff1a<\/p>\n<\/p>\n
# \u8bfb\u53d6\u6240\u6709\u8868\u683c<\/p>\n
excel_file = pd.ExcelFile('multi_sheet_example.xlsx')<\/p>\n
\u904d\u5386\u6240\u6709\u8868\u683c<\/strong><\/h2>\n
for sheet_name in excel_file.sheet_names:<\/p>\n
    df = pd.read_excel(excel_file, sheet_name=sheet_name)<\/p>\n
    # \u4fee\u6539\u6570\u636e<\/p>\n
    df.loc[df['username'] == 'user1', 'password'] = 'new_password123'<\/p>\n
    # \u4fdd\u5b58\u6570\u636e<\/p>\n
    with pd.ExcelWriter('multi_sheet_example_modified.xlsx', mode='a', if_sheet_exists='overlay') as writer:<\/p>\n
        df.to_excel(writer, sheet_name=sheet_name, index=False)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u603b\u7ed3<\/h2>\n<\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u6211\u4eec\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528Python\u5bf9\u8868\u683c\u8fdb\u884c\u4fee\u6539\u3002\u65e0\u8bba\u662fpandas\u8fd8\u662fopenpyxl\uff0c\u90fd\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u529f\u80fd\u6765\u5904\u7406Excel\u8868\u683c\u7684\u6570\u636e\u3002<\/strong> pandas\u66f4\u9002\u5408\u5927\u89c4\u6a21\u7684\u6570\u636e\u5904\u7406\uff0c\u800copenpyxl\u5219\u9002\u5408\u5bf9Excel\u8868\u683c\u8fdb\u884c\u66f4\u7ec6\u81f4\u7684\u64cd\u4f5c\u548c\u683c\u5f0f\u5316\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u5e93\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u4f7f\u7528Python\u5bf9Excel\u8868\u683c\u8fdb\u884c\u5bc6\u7801\u4fdd\u62a4\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528openpyxl<\/code>\u5e93\u6765\u5bf9Excel\u6587\u4ef6\u8fdb\u884c\u5904\u7406\u3002\u8981\u4e3aExcel\u6587\u4ef6\u8bbe\u7f6e\u5bc6\u7801\u4fdd\u62a4\uff0c\u60a8\u9700\u8981\u4f7f\u7528pywin32<\/code>\u5e93\u6216xlsxwriter<\/code>\u5e93\u3002xlsxwriter<\/code>\u5e93\u652f\u6301\u5728\u521b\u5efaExcel\u6587\u4ef6\u65f6\u76f4\u63a5\u8bbe\u7f6e\u5bc6\u7801\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528xlsxwriter<\/code>\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
import xlsxwriter\n\nworkbook = xlsxwriter.Workbook('protected.xlsx')\nworksheet = workbook.add_worksheet()\n\n# \u8bbe\u7f6e\u5bc6\u7801\nworkbook.password = 'your_password'\n\nworksheet.write('A1', 'Hello World')\nworkbook.close()\n<\/code><\/pre>\n
\u5982\u4f55\u5728Python\u4e2d\u4fee\u6539\u73b0\u6709Excel\u6587\u4ef6\u7684\u5bc6\u7801\uff1f<\/strong>
\u4fee\u6539\u73b0\u6709Excel\u6587\u4ef6\u7684\u5bc6\u7801\u6bd4\u8f83\u590d\u6742\uff0c\u56e0\u4e3a\u5927\u591a\u6570\u5e93\u4e0d\u652f\u6301\u76f4\u63a5\u66f4\u6539\u5bc6\u7801\u3002\u901a\u5e38\u7684\u65b9\u6cd5\u662f\u5148\u8bfb\u53d6\u539f\u6587\u4ef6\u5185\u5bb9\uff0c\u7136\u540e\u4ee5\u65b0\u5bc6\u7801\u91cd\u65b0\u4fdd\u5b58\u3002\u53ef\u4ee5\u4f7f\u7528openpyxl<\/code>\u8bfb\u53d6\u6587\u4ef6\uff0c\u518d\u4f7f\u7528xlsxwriter<\/code>\u4fdd\u5b58\uff1a<\/p>\n
import openpyxl\nimport xlsxwriter\n\n# \u8bfb\u53d6\u539f\u6587\u4ef6\nwb = openpyxl.load_workbook('existing_file.xlsx')\nws = wb.active\n\n# \u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5de5\u4f5c\u7c3f\nnew_workbook = xlsxwriter.Workbook('new_protected_file.xlsx')\nnew_worksheet = new_workbook.add_worksheet()\n\n# \u5c06\u539f\u6587\u4ef6\u5185\u5bb9\u590d\u5236\u5230\u65b0\u6587\u4ef6\nfor row in ws.iter_rows(values_only=True):\n    new_worksheet.append(row)\n\n# \u8bbe\u7f6e\u65b0\u5bc6\u7801\nnew_workbook.password = 'new_password'\nnew_workbook.close()\n<\/code><\/pre>\n
Python\u4e2d\u662f\u5426\u6709\u5176\u4ed6\u5e93\u53ef\u4ee5\u5b9e\u73b0Excel\u8868\u683c\u7684\u52a0\u5bc6\uff1f<\/strong>
\u9664\u4e86openpyxl<\/code>\u548cxlsxwriter<\/code>\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528pyxlsb<\/code>\u548cpandas<\/code>\u7ed3\u5408openpyxl<\/code>\u6765\u5904\u7406Excel\u6587\u4ef6\u3002\u4e0d\u8fc7\uff0cpyxlsb<\/code>\u4e3b\u8981\u7528\u4e8e\u8bfb\u53d6\u4e8c\u8fdb\u5236\u683c\u5f0f\u7684Excel\u6587\u4ef6\uff0c\u672a\u5fc5\u80fd\u76f4\u63a5\u5b9e\u73b0\u52a0\u5bc6\u529f\u80fd\u3002\u5bf9\u4e8e\u590d\u6742\u7684\u52a0\u5bc6\u9700\u6c42\uff0c\u53ef\u80fd\u9700\u8981\u7ed3\u5408\u591a\u4e2a\u5e93\u4f7f\u7528\uff0c\u6216\u8005\u4f7f\u7528Excel\u81ea\u8eab\u7684\u4fdd\u62a4\u529f\u80fd\u3002<\/p>\n
\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u5bf9Excel\u6587\u4ef6\u8fdb\u884c\u5bc6\u7801\u4fdd\u62a4\u548c\u4fee\u6539\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u4f7f\u7528Python\u5bf9\u8868\u683c\u8fdb\u884c\u4fee\u6539\u3001\u66f4\u65b0\u3001\u6dfb\u52a0\u6570\u636e\u65f6\uff0c\u4e3b\u8981\u4f9d\u8d56\u4e8e\u4e00\u4e9b\u5f3a\u5927\u7684\u5e93\uff0c\u5982pandas\u3001openpyxl\u3001x […]","protected":false},"author":3,"featured_media":1038379,"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\/1038370"}],"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=1038370"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1038370\/revisions"}],"predecessor-version":[{"id":1038384,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1038370\/revisions\/1038384"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1038379"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1038370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1038370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1038370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}