{"id":74125,"date":"2026-02-09T06:09:49","date_gmt":"2026-02-08T22:09:49","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/74125.html"},"modified":"2026-02-09T06:09:49","modified_gmt":"2026-02-08T22:09:49","slug":"python3-operator%e6%a8%a1%e5%9d%97%e9%ab%98%e6%95%88%e4%bd%bf%e7%94%a8%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/74125.html","title":{"rendered":"Python3 operator\u6a21\u5757\u9ad8\u6548\u4f7f\u7528\u6307\u5357"},"content":{"rendered":"

Python3 operator\u6a21\u5757\u5168\u9762\u5b66\u4e60\u6559\u7a0b<\/h4>\n

\u4e00\u3001\u6a21\u5757\u6982\u8ff0<\/h5>\n

operator\u6a21\u5757\u4e3aPython\u7684\u5185\u7f6e\u8fd0\u7b97\u7b26\u63d0\u4f9b\u4e86\u51fd\u6570\u5f0f\u63a5\u53e3\u3002\u5b83\u5305\u542b\u4e0e\u6bd4\u8f83\u8fd0\u7b97\u3001\u903b\u8f91\u8fd0\u7b97\u3001\u6570\u5b66\u8fd0\u7b97\u7b49\u5bf9\u5e94\u7684\u51fd\u6570，\u53ef\u66ff\u4ee3lambda\u8868\u8fbe\u5f0f，\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u6267\u884c\u6548\u7387\u3002<\/p>\n

\u4e8c\u3001\u5e38\u7528\u51fd\u6570\u5206\u7c7b<\/h5>\n
1. \u7b97\u672f\u8fd0\u7b97<\/h6>\n

import operator as op<\/p>\n

print(op.add(3, 5)) # 8 \u2192 \u52a0\u6cd5
\nprint(op.sub(10, 4)) # 6 \u2192 \u51cf\u6cd5
\nprint(op.mul(2, 6)) # 12 \u2192 \u4e58\u6cd5
\nprint(op.truediv(9, 3)) # 3.0 \u2192 \u771f\u9664\u6cd5
\nprint(op.floordiv(7, 2)) # 3 \u2192 \u53d6\u6574\u9664\u6cd5
\nprint(op.mod(13, 5)) # 3 \u2192 \u53d6\u6a21
\nprint(op.pow(2, 4)) # 16 \u2192 \u5e42\u8fd0\u7b97<\/p>\n

2. \u6bd4\u8f83\u8fd0\u7b97<\/h6>\n

data = [('Alice', 25), ('Bob', 20), ('Charlie', 30)]
\nsorted_data = sorted(data, key=op.itemgetter(1)) # \u6309\u5e74\u9f84\u5347\u5e8f\u6392\u5e8f<\/p>\n

print(op.eq(10, 10)) # True \u2192 \u7b49\u4e8e
\nprint(op.ne(7, 3)) # True \u2192 \u4e0d\u7b49\u4e8e
\nprint(op.lt(5, 8)) # True \u2192 \u5c0f\u4e8e
\nprint(op.le(6, 6)) # True \u2192 \u5c0f\u4e8e\u7b49\u4e8e<\/p>\n

3. \u903b\u8f91\u8fd0\u7b97<\/h6>\n

print(op.not_(True)) # False \u2192 \u903b\u8f91\u975e
\nprint(op.and_(True, False)) # False \u2192 \u903b\u8f91\u4e0e
\nprint(op.or_(False, True)) # True \u2192 \u903b\u8f91\u6216<\/p>\n

4. \u5e8f\u5217\u64cd\u4f5c<\/h6>\n

my_list = [1, 2, 3, 4]
\nprint(op.concat([1,2], [3,4])) # [1,2,3,4] \u2192 \u5e8f\u5217\u8fde\u63a5
\nprint(op.contains([10,20], 20)) # True \u2192 \u5305\u542b\u68c0\u6d4b
\nprint(op.countOf([5,5,5], 5)) # 3 \u2192 \u8ba1\u6570<\/p>\n

\u4e09\u3001\u9ad8\u9636\u51fd\u6570\u5e94\u7528<\/h5>\n
1. itemgetter \u5bf9\u8c61<\/h6>\n

get_second = op.itemgetter(1) # \u83b7\u53d6\u5e8f\u5217\u7b2c\u4e8c\u4e2a\u5143\u7d20
\nprint(get_second(['a','b','c'])) # 'b'<\/p>\n

# \u591a\u7ea7\u6392\u5e8f\u793a\u4f8b
\nstudents = [('Bob', 'B', 15), ('Alice', 'A', 20), ('Chris', 'B', 18)]
\nsorted_students = sorted(students, key=op.itemgetter(1, 2))<\/p>\n

2. attrgetter \u5bf9\u8c61<\/h6>\n

class Person:
\n def __init__(self, name, age):
\n self.name = name
\n self.age = age<\/p>\n

people = [Person('Tom', 30), Person('Jerry', 25)]
\nget_age = op.attrgetter('age') # \u83b7\u53d6age\u5c5e\u6027
\nprint([get_age(p) for p in people]) # [30, 25]<\/p>\n

3. \u51fd\u6570\u5f0f\u7f16\u7a0b<\/h6>\n

from functools import reduce
\nresult = reduce(op.add, [1,2,3,4]) # \u7b49\u6548\u4e8e sum([1,2,3,4])
\nprint(result) # 10<\/p>\n

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\u56db\u3001\u5b9e\u7528\u6280\u5de7<\/h5>\n
  • \n

    \u66ff\u4ee3lambda operator.add \u6bd4 lambda x,y: x+y \u66f4\u9ad8\u6548<\/p>\n

    # \u4f20\u7edf\u65b9\u5f0f
    \nsorted(names, key=lambda x: x[1])<\/p>\n

    # \u4f18\u5316\u65b9\u5f0f
    \nsorted(names, key=op.itemgetter(1))<\/p>\n<\/li>\n

  • \n

    \u65b9\u6cd5\u8c03\u7528\u5668<\/p>\n

    upper_all = map(op.methodcaller('upper'), ['a','b','c'])
    \nprint(list(upper_all)) # ['A','B','C']<\/p>\n<\/li>\n

  • \n

    \u81ea\u5b9a\u4e49\u8fd0\u7b97\u7b26<\/p>\n

    def vector_add(v1, v2):
    \n return tuple(map(op.add, v1, v2))<\/p>\n

    print(vector_add((1,2), (3,4))) # (4,6)<\/p>\n<\/li>\n

    \u4e94\u3001\u6027\u80fd\u4f18\u52bf<\/h5>\n

    \u5728\u5faa\u73af\u5bc6\u96c6\u578b\u64cd\u4f5c\u4e2d，operator\u6a21\u5757\u6bd4\u7b49\u4ef7\u7684lambda\u8868\u8fbe\u5f0f\u5feb\u7ea620%-30%：<\/p>\n

    import timeit<\/p>\n

    lambda_time = timeit.timeit(
    \n 'sorted(data, key=lambda x: x[1])',
    \n setup='data=[(i, i%10) for i in range(1000)]',
    \n number=1000
    \n)<\/p>\n

    op_time = timeit.timeit(
    \n 'sorted(data, key=op.itemgetter(1))',
    \n setup='import operator as op; data=[(i, i%10) for i in range(1000)]',
    \n number=1000
    \n)<\/p>\n

    print(f"Lambda\u8017\u65f6: {lambda_time:.4f}s")
    \nprint(f"Operator\u8017\u65f6: {op_time:.4f}s")<\/p>\n

    \u516d\u3001\u603b\u7ed3<\/h5>\n

    \u901a\u8fc7operator\u6a21\u5757\u53ef\u5b9e\u73b0：<\/p>\n

      \n
    • \u66f4\u6e05\u6670\u7684\u51fd\u6570\u5f0f\u7f16\u7a0b<\/li>\n
    • \u66f4\u9ad8\u6548\u7684\u5e8f\u5217\u64cd\u4f5c<\/li>\n
    • \u66f4\u4f18\u96c5\u7684\u5c5e\u6027\/\u5143\u7d20\u8bbf\u95ee<\/li>\n
    • \u66f4\u5feb\u901f\u7684\u8fd0\u7b97\u6267\u884c<\/li>\n<\/ul>\n

      \u5efa\u8bae\u5728\u6d89\u53ca\u5927\u91cf\u7b80\u5355\u8fd0\u7b97\u7684\u573a\u666f\u4e2d\u4f18\u5148\u4f7f\u7528\u6b64\u6a21\u5757，\u4f46\u9700\u6ce8\u610f\u5728\u7b80\u5355\u8868\u8fbe\u5f0f\u573a\u666f\u4e2d\u76f4\u63a5\u4f7f\u7528\u8fd0\u7b97\u7b26\u53ef\u80fd\u66f4\u76f4\u89c2：<\/p>\n

      # \u7b80\u5355\u573a\u666f
      \nx + y # \u4f18\u4e8e operator.add(x, y)<\/p>\n

      # \u590d\u6742\u573a\u666f
      \nreduce(op.add, large_list) # \u4f18\u4e8e reduce(lambda a,b: a+b, large_list)<\/p>\n","protected":false},"excerpt":{"rendered":"

      Python3 operator\u6a21\u5757\u5168\u9762\u5b66\u4e60\u6559\u7a0b
      \n\u4e00\u3001\u6a21\u5757\u6982\u8ff0
      \noperator\u6a21\u5757\u4e3aPython\u7684\u5185\u7f6e\u8fd0\u7b97\u7b26\u63d0\u4f9b\u4e86\u51fd\u6570\u5f0f\u63a5\u53e3\u3002\u5b83\u5305\u542b\u4e0e\u6bd4\u8f83\u8fd0\u7b97\u3001\u903b\u8f91\u8fd0\u7b97\u3001\u6570\u5b66\u8fd0\u7b97\u7b49\u5bf9\u5e94\u7684\u51fd\u6570，\u53ef\u66ff\u4ee3lambda\u8868\u8fbe\u5f0f，\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u6267\u884c\u6548\u7387\u3002
      \n\u4e8c\u3001\u5e38\u7528\u51fd\u6570\u5206\u7c7b
      \n1. \u7b97\u672f\u8fd0\u7b97
      \nimport operator as opprint(op.add(3, 5)) # 8 \u2192 \u52a0\u6cd5
      \nprint(op.sub(10, 4)) # 6 \u2192 <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[81,190],"topic":[],"class_list":["post-74125","post","type-post","status-publish","format-standard","hentry","category-server","tag-python","tag-190"],"yoast_head":"\nPython3 operator\u6a21\u5757\u9ad8\u6548\u4f7f\u7528\u6307\u5357 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/74125.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python3 operator\u6a21\u5757\u9ad8\u6548\u4f7f\u7528\u6307\u5357 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"Python3 operator\u6a21\u5757\u5168\u9762\u5b66\u4e60\u6559\u7a0b \u4e00\u3001\u6a21\u5757\u6982\u8ff0 operator\u6a21\u5757\u4e3aPython\u7684\u5185\u7f6e\u8fd0\u7b97\u7b26\u63d0\u4f9b\u4e86\u51fd\u6570\u5f0f\u63a5\u53e3\u3002\u5b83\u5305\u542b\u4e0e\u6bd4\u8f83\u8fd0\u7b97\u3001\u903b\u8f91\u8fd0\u7b97\u3001\u6570\u5b66\u8fd0\u7b97\u7b49\u5bf9\u5e94\u7684\u51fd\u6570，\u53ef\u66ff\u4ee3lambda\u8868\u8fbe\u5f0f，\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u6267\u884c\u6548\u7387\u3002 \u4e8c\u3001\u5e38\u7528\u51fd\u6570\u5206\u7c7b 1. \u7b97\u672f\u8fd0\u7b97 import operator as opprint(op.add(3, 5)) # 8 \u2192 \u52a0\u6cd5 print(op.sub(10, 4)) # 6 \u2192\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/74125.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-08T22:09:49+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/74125.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/74125.html\",\"name\":\"Python3 operator\u6a21\u5757\u9ad8\u6548\u4f7f\u7528\u6307\u5357 - 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