{"id":1055293,"date":"2024-12-31T14:49:28","date_gmt":"2024-12-31T06:49:28","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1055293.html"},"modified":"2024-12-31T14:49:30","modified_gmt":"2024-12-31T06:49:30","slug":"python%e4%b8%adlist%e4%b8%ad%e7%9a%84%e6%95%b0%e5%a6%82%e4%bd%95%e7%9b%b8%e5%8a%a0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1055293.html","title":{"rendered":"python\u4e2dlist\u4e2d\u7684\u6570\u5982\u4f55\u76f8\u52a0"},"content":{"rendered":"

\"python\u4e2dlist\u4e2d\u7684\u6570\u5982\u4f55\u76f8\u52a0\"<\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5bf9\u5217\u8868\u4e2d\u7684\u6570\u8fdb\u884c\u76f8\u52a0\uff0c\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u3001\u5faa\u73af\u548c\u5217\u8868\u63a8\u5bfc\u7b49\u65b9\u6cd5\u3002\u4f7f\u7528sum()\u51fd\u6570\u3001\u4f7f\u7528for\u5faa\u73af\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u3001\u4f7f\u7528reduce\u51fd\u6570<\/strong>\u3002\u5176\u4e2d\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u5185\u7f6e\u7684sum()\u51fd\u6570\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528sum()\u51fd\u6570<\/h3>\n<\/p>\n

Python\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5185\u7f6e\u7684sum()\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u76f4\u63a5\u5bf9\u5217\u8868\u4e2d\u7684\u6570\u8fdb\u884c\u6c42\u548c\u3002\u5b83\u7684\u4f7f\u7528\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5c06\u5217\u8868\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9sum()\u51fd\u6570\u5373\u53ef\u3002<\/p>\n<\/p>\n

numbers = [1, 2, 3, 4, 5]<\/p>\n
total = sum(numbers)<\/p>\n
print(total)  # \u8f93\u51fa\uff1a15<\/p>\n
<\/code><\/pre>\n<\/p>\n
sum()\u51fd\u6570\u7684\u4f18\u52bf\u5728\u4e8e\u5b83\u7b80\u6d01\u660e\u4e86\uff0c\u9002\u5408\u5904\u7406\u7b80\u5355\u7684\u6c42\u548c\u64cd\u4f5c\u3002<\/strong><\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528for\u5faa\u73af<\/h3>\n<\/p>\n
\u53e6\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528for\u5faa\u73af\u6765\u904d\u5386\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u7136\u540e\u5c06\u5b83\u4eec\u9010\u4e00\u76f8\u52a0\u3002\u8fd9\u79cd\u65b9\u6cd5\u66f4\u52a0\u7075\u6d3b\uff0c\u53ef\u4ee5\u5728\u6c42\u548c\u7684\u8fc7\u7a0b\u4e2d\u6dfb\u52a0\u989d\u5916\u7684\u903b\u8f91\u3002<\/p>\n<\/p>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
total = 0<\/p>\n
for num in numbers:<\/p>\n
    total += num<\/p>\n
print(total)  # \u8f93\u51fa\uff1a15<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528for\u5faa\u73af\u53ef\u4ee5\u5728\u6c42\u548c\u7684\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u5176\u4ed6\u64cd\u4f5c\uff0c\u4f8b\u5982\u8fc7\u6ee4\u7279\u5b9a\u7684\u5143\u7d20\u3002<\/strong><\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc<\/h3>\n<\/p>\n
\u5217\u8868\u63a8\u5bfc\uff08List Comprehension\uff09\u662f\u4e00\u79cd\u7b80\u6d01\u7684\u65b9\u5f0f\u6765\u521b\u5efa\u5217\u8868\uff0c\u540c\u65f6\u4e5f\u53ef\u4ee5\u7528\u4e8e\u6c42\u548c\u64cd\u4f5c\u3002\u867d\u7136\u5217\u8868\u63a8\u5bfc\u672c\u8eab\u4e0d\u80fd\u76f4\u63a5\u6c42\u548c\uff0c\u4f46\u53ef\u4ee5\u4e0esum()\u51fd\u6570\u7ed3\u5408\u4f7f\u7528\u3002<\/p>\n<\/p>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
total = sum([num for num in numbers])<\/p>\n
print(total)  # \u8f93\u51fa\uff1a15<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5217\u8868\u63a8\u5bfc\u7684\u4f18\u52bf\u5728\u4e8e\u5b83\u53ef\u4ee5\u5728\u521b\u5efa\u5217\u8868\u7684\u540c\u65f6\u8fdb\u884c\u8fc7\u6ee4\u548c\u8f6c\u6362\u64cd\u4f5c\u3002<\/strong><\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528reduce\u51fd\u6570<\/h3>\n<\/p>\n
reduce()\u51fd\u6570\u662ffunctools\u6a21\u5757\u4e2d\u7684\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u5bf9\u5217\u8868\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u7d2f\u79ef\u64cd\u4f5c\u3002\u4e0esum()\u51fd\u6570\u76f8\u6bd4\uff0creduce()\u66f4\u52a0\u901a\u7528\uff0c\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u5404\u79cd\u7d2f\u79ef\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
from functools import reduce<\/p>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
total = reduce(lambda x, y: x + y, numbers)<\/p>\n
print(total)  # \u8f93\u51fa\uff1a15<\/p>\n
<\/code><\/pre>\n<\/p>\n
reduce()\u51fd\u6570\u9002\u5408\u7528\u4e8e\u66f4\u590d\u6742\u7684\u7d2f\u79ef\u64cd\u4f5c\uff0c\u4f8b\u5982\u81ea\u5b9a\u4e49\u7684\u6c42\u548c\u903b\u8f91\u3002<\/strong><\/p>\n<\/p>\n
\u4e94\u3001\u4f7f\u7528NumPy\u5e93<\/h3>\n<\/p>\n
NumPy\u662f\u4e00\u4e2a\u7528\u4e8e\u79d1\u5b66\u8ba1\u7b97\u7684\u7b2c\u4e09\u65b9\u5e93\uff0c\u5176\u4e2d\u7684\u6570\u7ec4\u64cd\u4f5c\u529f\u80fd\u975e\u5e38\u5f3a\u5927\u3002\u4f7f\u7528NumPy\u53ef\u4ee5\u9ad8\u6548\u5730\u5bf9\u5927\u89c4\u6a21\u6570\u7ec4\u8fdb\u884c\u6c42\u548c\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
import numpy as np<\/p>\n
numbers = np.array([1, 2, 3, 4, 5])<\/p>\n
total = np.sum(numbers)<\/p>\n
print(total)  # \u8f93\u51fa\uff1a15<\/p>\n
<\/code><\/pre>\n<\/p>\n
NumPy\u9002\u5408\u7528\u4e8e\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\uff0c\u5e76\u4e14\u5728\u6027\u80fd\u4e0a\u4f18\u4e8e\u7eafPython\u7684\u5217\u8868\u64cd\u4f5c\u3002<\/strong><\/p>\n<\/p>\n
\u516d\u3001\u4f7f\u7528itertools\u5e93<\/h3>\n<\/p>\n
itertools\u5e93\u4e2d\u7684chAI<\/a>n()\u51fd\u6570\u53ef\u4ee5\u5c06\u591a\u4e2a\u5217\u8868\u8fde\u63a5\u8d77\u6765\uff0c\u7136\u540e\u4f7f\u7528sum()\u51fd\u6570\u5bf9\u5176\u8fdb\u884c\u6c42\u548c\u3002\u867d\u7136\u5728\u672c\u4f8b\u4e2d\u6ca1\u6709\u591a\u4e2a\u5217\u8868\uff0c\u4f46\u8fd9\u5c55\u793a\u4e86itertools\u5e93\u7684\u7075\u6d3b\u6027\u3002<\/p>\n<\/p>\n
from itertools import chain<\/p>\n
numbers = [1, 2, 3, 4, 5]<\/p>\n
total = sum(chain(numbers))<\/p>\n
print(total)  # \u8f93\u51fa\uff1a15<\/p>\n
<\/code><\/pre>\n<\/p>\n
itertools\u5e93\u9002\u5408\u7528\u4e8e\u5904\u7406\u590d\u6742\u7684\u8fed\u4ee3\u5668\u64cd\u4f5c\uff0c\u4f8b\u5982\u591a\u4e2a\u5217\u8868\u7684\u8fde\u63a5\u3002<\/strong><\/p>\n<\/p>\n
\u4e03\u3001\u603b\u7ed3\u4e0e\u5efa\u8bae<\/h3>\n<\/p>\n
\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u9700\u6c42\u548c\u4e0a\u4e0b\u6587\uff1a<\/p>\n<\/p>\n
    \n
  1. \u7b80\u5355\u6c42\u548c\uff1a<\/strong> \u4f7f\u7528sum()\u51fd\u6570\u6700\u4e3a\u7b80\u6d01\u660e\u4e86\u3002<\/li>\n
  2. \u5e26\u6709\u989d\u5916\u903b\u8f91\u7684\u6c42\u548c\uff1a<\/strong> \u4f7f\u7528for\u5faa\u73af\u66f4\u52a0\u7075\u6d3b\u3002<\/li>\n
  3. \u9700\u8981\u8fc7\u6ee4\u6216\u8f6c\u6362\uff1a<\/strong> \u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u4e0esum()\u51fd\u6570\u7ed3\u5408\u3002<\/li>\n
  4. \u590d\u6742\u7684\u7d2f\u79ef\u64cd\u4f5c\uff1a<\/strong> \u4f7f\u7528reduce()\u51fd\u6570\u3002<\/li>\n
  5. \u5927\u89c4\u6a21\u6570\u636e\u5904\u7406\uff1a<\/strong> \u4f7f\u7528NumPy\u5e93\u3002<\/li>\n
  6. \u5904\u7406\u591a\u4e2a\u5217\u8868\uff1a<\/strong> \u4f7f\u7528itertools\u5e93\u3002<\/li>\n<\/ol>\n
    \u5efa\u8bae\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u573a\u666f\u9009\u62e9\u6700\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6548\u7387\u3002<\/strong><\/p>\n<\/p>\n
    \u516b\u3001\u8fdb\u9636\u793a\u4f8b<\/h3>\n<\/p>\n
    \u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u8fd9\u4e9b\u65b9\u6cd5\u7684\u5e94\u7528\uff0c\u4e0b\u9762\u63d0\u4f9b\u4e00\u4e9b\u8fdb\u9636\u793a\u4f8b\uff0c\u5c55\u793a\u5b83\u4eec\u5728\u4e0d\u540c\u573a\u666f\u4e2d\u7684\u4f7f\u7528\u3002<\/p>\n<\/p>\n
    1\u3001\u6c42\u548c\u5e76\u8fc7\u6ee4\u7279\u5b9a\u5143\u7d20<\/h4>\n<\/p>\n
    \u5047\u8bbe\u6211\u4eec\u9700\u8981\u5bf9\u5217\u8868\u4e2d\u7684\u6570\u8fdb\u884c\u6c42\u548c\uff0c\u4f46\u53ea\u5bf9\u5176\u4e2d\u7684\u5076\u6570\u8fdb\u884c\u64cd\u4f5c\uff0c\u53ef\u4ee5\u4f7f\u7528for\u5faa\u73af\u6216\u5217\u8868\u63a8\u5bfc\u3002<\/p>\n<\/p>\n
    numbers = [1, 2, 3, 4, 5, 6]<\/p>\n
    total = sum([num for num in numbers if num % 2 == 0])<\/p>\n
    print(total)  # \u8f93\u51fa\uff1a12<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    2\u3001\u6c42\u548c\u5e76\u8f6c\u6362\u5143\u7d20<\/h4>\n<\/p>\n
    \u5047\u8bbe\u6211\u4eec\u9700\u8981\u5bf9\u5217\u8868\u4e2d\u7684\u6570\u8fdb\u884c\u6c42\u548c\uff0c\u4f46\u5728\u6c42\u548c\u4e4b\u524d\u5c06\u6bcf\u4e2a\u6570\u5e73\u65b9\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u4e0esum()\u51fd\u6570\u7ed3\u5408\u3002<\/p>\n<\/p>\n
    numbers = [1, 2, 3, 4, 5]<\/p>\n
    total = sum([num2 for num in numbers])<\/p>\n
    print(total)  # \u8f93\u51fa\uff1a55<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    3\u3001\u5904\u7406\u5d4c\u5957\u5217\u8868<\/h4>\n<\/p>\n
    \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5d4c\u5957\u5217\u8868\uff0c\u9700\u8981\u5bf9\u6240\u6709\u5d4c\u5957\u5217\u8868\u4e2d\u7684\u6570\u8fdb\u884c\u6c42\u548c\uff0c\u53ef\u4ee5\u4f7f\u7528itertools.chain()\u51fd\u6570\u3002<\/p>\n<\/p>\n
    from itertools import chain<\/p>\n
    nested_numbers = [[1, 2, 3], [4, 5], [6, 7, 8]]<\/p>\n
    total = sum(chain(*nested_numbers))<\/p>\n
    print(total)  # \u8f93\u51fa\uff1a36<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    4\u3001\u4f7f\u7528NumPy\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e<\/h4>\n<\/p>\n
    \u5047\u8bbe\u6211\u4eec\u9700\u8981\u5bf9\u4e00\u4e2a\u5305\u542b100\u4e07\u4e2a\u968f\u673a\u6570\u7684\u5217\u8868\u8fdb\u884c\u6c42\u548c\uff0c\u53ef\u4ee5\u4f7f\u7528NumPy\u5e93\u6765\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<\/p>\n
    import numpy as np<\/p>\n
    numbers = np.random.rand(1000000)<\/p>\n
    total = np.sum(numbers)<\/p>\n
    print(total)  # \u8f93\u51fa\uff1a\u5927\u7ea6500000\uff08\u53d6\u51b3\u4e8e\u968f\u673a\u6570\uff09<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e5d\u3001\u6027\u80fd\u6bd4\u8f83<\/h3>\n<\/p>\n
    \u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u4e0d\u540c\u65b9\u6cd5\u7684\u6027\u80fd\u5dee\u5f02\uff0c\u53ef\u4ee5\u5bf9\u5b83\u4eec\u8fdb\u884c\u7b80\u5355\u7684\u6027\u80fd\u6d4b\u8bd5\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u4f7f\u7528timeit\u6a21\u5757\u5bf9\u4e0d\u540c\u65b9\u6cd5\u8fdb\u884c\u8ba1\u65f6\u3002<\/p>\n<\/p>\n
    import timeit<\/p>\n
    from functools import reduce<\/p>\n
    import numpy as np<\/p>\n
    \u6570\u636e\u51c6\u5907<\/strong><\/h2>\n
    numbers = list(range(1000000))<\/p>\n
    \u6d4b\u8bd5sum()\u51fd\u6570<\/strong><\/h2>\n
    print(timeit.timeit('sum(numbers)', globals=globals(), number=100))<\/p>\n
    \u6d4b\u8bd5for\u5faa\u73af<\/strong><\/h2>\n
    print(timeit.timeit('''<\/p>\n
    total = 0<\/p>\n
    for num in numbers:<\/p>\n
        total += num<\/p>\n
    ''', globals=globals(), number=100))<\/p>\n
    \u6d4b\u8bd5reduce()\u51fd\u6570<\/strong><\/h2>\n
    print(timeit.timeit('reduce(lambda x, y: x + y, numbers)', globals=globals(), number=100))<\/p>\n
    \u6d4b\u8bd5NumPy<\/strong><\/h2>\n
    numbers_np = np.array(numbers)<\/p>\n
    print(timeit.timeit('np.sum(numbers_np)', globals=globals(), number=100))<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4ece\u6027\u80fd\u6d4b\u8bd5\u7ed3\u679c\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0cNumPy\u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\u8868\u73b0\u6700\u4f73\uff0c\u800csum()\u51fd\u6570\u5728\u5904\u7406\u4e2d\u5c0f\u89c4\u6a21\u6570\u636e\u65f6\u4e5f\u5177\u6709\u5f88\u9ad8\u7684\u6548\u7387\u3002<\/strong><\/p>\n<\/p>\n
    \u5341\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
    \u5728Python\u4e2d\uff0c\u5bf9\u5217\u8868\u4e2d\u7684\u6570\u8fdb\u884c\u76f8\u52a0\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4f9b\u9009\u62e9\uff0c\u5305\u62ec\u4f7f\u7528sum()\u51fd\u6570\u3001for\u5faa\u73af\u3001\u5217\u8868\u63a8\u5bfc\u3001reduce\u51fd\u6570\u3001NumPy\u5e93\u548citertools\u5e93\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u9002\u7528\u7684\u573a\u666f\u548c\u4f18\u7f3a\u70b9\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u5efa\u8bae\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u6700\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6548\u7387\u3002<\/p>\n<\/p>\n
    \u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u591f\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u548c\u638c\u63e1Python\u4e2d\u5217\u8868\u6c42\u548c\u7684\u5404\u79cd\u65b9\u6cd5\uff0c\u5e76\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7075\u6d3b\u5e94\u7528\u3002<\/strong><\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u5982\u4f55\u5728Python\u4e2d\u5c06\u5217\u8868\u4e2d\u7684\u6570\u5b57\u76f8\u52a0\uff1f<\/strong>
    \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u51fd\u6570sum()<\/code>\u6765\u8f7b\u677e\u5c06\u5217\u8868\u4e2d\u7684\u6240\u6709\u6570\u5b57\u76f8\u52a0\u3002\u53ea\u9700\u5c06\u5217\u8868\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9sum()<\/code>\u51fd\u6570\uff0c\u5b83\u4f1a\u8fd4\u56de\u6240\u6709\u5143\u7d20\u7684\u603b\u548c\u3002\u4f8b\u5982\uff0ctotal = sum([1, 2, 3, 4])<\/code>\u5c06\u8fd4\u56de10\u3002<\/p>\n
    \u5982\u679c\u5217\u8868\u4e2d\u5305\u542b\u975e\u6570\u5b57\u5143\u7d20\uff0c\u6211\u8be5\u5982\u4f55\u5904\u7406\uff1f<\/strong>
    \u5728\u5904\u7406\u5305\u542b\u975e\u6570\u5b57\u5143\u7d20\u7684\u5217\u8868\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u8fc7\u6ee4\u6389\u8fd9\u4e9b\u5143\u7d20\u3002\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5\u6bcf\u4e2a\u5143\u7d20\u662f\u5426\u662f\u6570\u5b57\u6765\u786e\u4fdd\u53ea\u5bf9\u6570\u5b57\u8fdb\u884c\u6c42\u548c\u3002\u4f8b\u5982\uff0ctotal = sum(x for x in my_list if isinstance(x, (int, float)))<\/code>\u5c06\u4ec5\u5bf9\u6574\u6570\u548c\u6d6e\u70b9\u6570\u8fdb\u884c\u6c42\u548c\u3002<\/p>\n
    \u5982\u4f55\u5728Python\u4e2d\u6c42\u548c\u5e76\u540c\u65f6\u83b7\u53d6\u5143\u7d20\u7684\u6570\u91cf\uff1f<\/strong>
    \u8981\u540c\u65f6\u83b7\u53d6\u5217\u8868\u4e2d\u6570\u5b57\u7684\u603b\u548c\u548c\u6570\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528len()<\/code>\u51fd\u6570\u7ed3\u5408sum()<\/code>\u51fd\u6570\u3002\u4f8b\u5982\uff0ctotal = sum(my_list)<\/code>\u548ccount = len([x for x in my_list if isinstance(x, (int, float))])<\/code>\u5c06\u5206\u522b\u8ba1\u7b97\u603b\u548c\u548c\u6570\u91cf\u3002\u8fd9\u6837\u53ef\u4ee5\u65b9\u4fbf\u5730\u83b7\u53d6\u6240\u9700\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5bf9\u5217\u8868\u4e2d\u7684\u6570\u8fdb\u884c\u76f8\u52a0\uff0c\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u3001\u5faa\u73af\u548c\u5217\u8868\u63a8\u5bfc\u7b49\u65b9\u6cd5\u3002\u4f7f\u7528sum() […]","protected":false},"author":3,"featured_media":1055299,"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\/1055293"}],"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=1055293"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1055293\/revisions"}],"predecessor-version":[{"id":1055300,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1055293\/revisions\/1055300"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1055299"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1055293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1055293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1055293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}