<\/p>\n
\u5728 Python \u4e2d\uff0c`__init__()` \u51fd\u5f0f\u662f\u4e00\u500b\u7279\u6b8a\u7684\u65b9\u6cd5\uff0c\u7528\u65bc\u521d\u59cb\u5316\u985e\u5225\u7684\u5c6c\u6027\u3002\u9019\u500b\u65b9\u6cd5\u5728\u985e\u5225\u88ab\u5be6\u4f8b\u5316\u6642\u81ea\u52d5\u88ab\u8abf\u7528\uff0c\u63d0\u4f9b\u4e86\u4e00\u500b\u5f37\u5927\u7684\u6a5f\u5236\u4f86\u8a2d\u5b9a\u65b0\u7269\u4ef6\u7684\u521d\u59cb\u72c0\u614b\u3002\u6b63\u78ba\u4f7f\u7528 `__init__()` \u51fd\u5f0f\u6709\u52a9\u65bc\u63d0\u9ad8\u7a0b\u5f0f\u7684\u53ef\u8b80\u6027\u8207\u53ef\u7dad\u8b77\u6027\u3002<\/p>\n
## `__init__()` \u51fd\u5f0f\u7684\u57fa\u672c\u8a9e\u6cd5<\/p>\n
`__init__()` \u51fd\u5f0f\u53ef\u4ee5\u63a5\u53d7\u4efb\u610f\u6578\u91cf\u7684\u53c3\u6578\uff0c\u4f46\u7b2c\u4e00\u500b\u53c3\u6578\u5fc5\u9808\u662f `self`\uff0c\u5b83\u4ee3\u8868\u985e\u5225\u7684\u5be6\u4f8b\u3002\u4ee5\u4e0b\u662f `__init__()` \u51fd\u5f0f\u7684\u4e00\u500b\u57fa\u672c\u7bc4\u4f8b\uff1a<\/p>\n
“`python
\nclass MyClass:
\n def __init__(self, name, age):
\n self.name = name
\n self.age = age<\/p>\n
my_object = MyClass(“John”, 30)<\/p>\n
print(my_object.name) # \u8f38\u51fa: John
\nprint(my_object.age) # \u8f38\u51fa: 30
\n“`<\/p>\n
\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba `MyClass` \u7684\u985e\u5225\uff0c\u4e26\u5728 `__init__()` \u51fd\u5f0f\u4e2d\u8a2d\u5b9a\u4e86 `name` \u548c `age` \u5169\u500b\u5c6c\u6027\u3002\u7576\u6211\u5011\u5275\u5efa `MyClass` \u7684\u5be6\u4f8b\u6642\uff0c\u9019\u4e9b\u5c6c\u6027\u6703\u88ab\u521d\u59cb\u5316\u70ba\u6211\u5011\u63d0\u4f9b\u7684\u503c\u3002<\/p>\n
## \u932f\u8aa4\u6392\u9664<\/p>\n
\u5728\u4f7f\u7528 `__init__()` \u51fd\u5f0f\u6642\uff0c\u5e38\u898b\u7684\u932f\u8aa4\u5305\u62ec\uff1a
\n1. \u5fd8\u8a18\u5c07 `self` \u4f5c\u70ba\u7b2c\u4e00\u500b\u53c3\u6578\u3002
\n2. \u5728\u51fd\u5f0f\u5167\u90e8\u932f\u8aa4\u5730\u5f15\u7528\u672a\u521d\u59cb\u5316\u7684\u5c6c\u6027\u3002
\n3. \u4e0d\u540c\u65bc Python 3 \u7684\u8a9e\u6cd5\uff0cPython 2 \u4e2d\u7684 `__init__()` \u53ef\u80fd\u6703\u6709\u4e0d\u540c\u7684\u884c\u70ba\u3002<\/p>\n
\u78ba\u4fdd\u5728\u5b9a\u7fa9\u985e\u5225\u6642\uff0c\u6b63\u78ba\u5730\u4f7f\u7528 `self`\uff0c\u4e26\u5728\u4f7f\u7528\u5c6c\u6027\u4e4b\u524d\u9032\u884c\u521d\u59cb\u5316\u3002<\/p>\n
## \u5ef6\u4f38\u61c9\u7528<\/p>\n
`__init__()` \u51fd\u5f0f\u4e0d\u50c5\u53ef\u4ee5\u7528\u4f86\u521d\u59cb\u5316\u57fa\u672c\u6578\u64da\u985e\u578b\uff0c\u9084\u53ef\u4ee5\u7528\u4f86\u8a2d\u7f6e\u8907\u96dc\u7684\u5c0d\u8c61\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u5728 `__init__()` \u4e2d\u5275\u5efa\u5176\u4ed6\u985e\u7684\u5be6\u4f8b\uff0c\u6216\u521d\u59cb\u5316\u6587\u4ef6\u64cd\u4f5c\u7b49\u3002<\/p>\n
“`python
\nclass Person:
\n def __init__(self, name, age):
\n self.name = name
\n self.age = age
\n self.friends = [] # \u521d\u59cb\u5316\u4e00\u500b\u7a7a\u7684\u670b\u53cb\u5217\u8868<\/p>\n
def add_friend(self, friend_name):
\n self.friends.append(friend_name)<\/p>\n
person = Person(“Alice”, 25)
\nperson.add_friend(“Bob”)
\nprint(person.friends) # \u8f38\u51fa: [‘Bob’]\n“`<\/p>\n
\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5728 `__init__()` \u4e2d\u521d\u59cb\u5316\u4e86\u4e00\u500b\u7a7a\u7684\u670b\u53cb\u5217\u8868\uff0c\u4e26\u901a\u904e\u65b9\u6cd5\u4f86\u6dfb\u52a0\u670b\u53cb\u3002<\/p>\n
## \u7e3d\u7d50<\/p>\n
`__init__()` \u51fd\u5f0f\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u5728\u5275\u5efa\u7269\u4ef6\u6642\u5feb\u901f\u8a2d\u5b9a\u5c6c\u6027\u3002\u719f\u7df4\u638c\u63e1\u9019\u500b\u51fd\u5f0f\uff0c\u80fd\u5920\u63d0\u5347\u4f60\u7684 Python \u7de8\u7a0b\u6280\u5de7\u3002<\/p>\n
\u5982\u9700\u9032\u4e00\u6b65\u5b78\u7fd2\uff0c\u5efa\u8b70\u53c3\u8003 [\u9019\u7bc7 Python \u6559\u5b78\u6587\u7ae0](https:\/\/vocus.cc\/article\/123456) \u4e86\u89e3\u66f4\u591a\u3002<\/p>\n
## Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/p>\n
**Q1: `__init__()` \u51fd\u5f0f\u662f\u5426\u53ef\u4ee5\u4e0d\u63a5\u53d7\u4efb\u4f55\u53c3\u6578\uff1f**
\nA1: \u662f\u7684\uff0c`__init__()` \u51fd\u5f0f\u53ef\u4ee5\u4e0d\u63a5\u53d7\u4efb\u4f55\u53c3\u6578\uff0c\u4f46\u4ecd\u9700\u5305\u542b `self`\u3002<\/p>\n
**Q2: `__init__()` \u51fd\u5f0f\u7684\u8fd4\u56de\u503c\u662f\u4ec0\u9ebc\uff1f**
\nA2: `__init__()` \u51fd\u5f0f\u4e0d\u9700\u8981\u8fd4\u56de\u4efb\u4f55\u503c\uff0cPython \u6703\u81ea\u52d5\u8fd4\u56de\u65b0\u5275\u5efa\u7684\u7269\u4ef6\u3002<\/p>\n
**Q3: \u5982\u4f55\u5728 `__init__()` \u4e2d\u8655\u7406\u932f\u8aa4\uff1f**
\nA3: \u4f60\u53ef\u4ee5\u4f7f\u7528 try-except \u584a\u4f86\u6355\u7372\u548c\u8655\u7406\u5728 `__init__()` \u4e2d\u767c\u751f\u7684\u932f\u8aa4\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7a0b\u5f0f\u7a69\u5b9a\u6027\u3002<\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
Python\u7684init()\u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728\u521d\u59cb\u5316\u7269\u4ef6\u6642\u66f4\u52a0\u5bb9\u6613\uff0c\u4e26\u4e14\u66f4\u52a0\u6709\u6548\u7387\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39init()\u51fd\u6578\u7684\u529f\u80fd\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u63d0\u9ad8\u958b\u767c\u6548\u7387\u3002<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[15],"class_list":["post-3278","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2022\/12\/DALL\u00b7E-2022-12-28-14.25.55-\u62f7\u8c9d2.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-QS","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3278","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3278"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3278\/revisions"}],"predecessor-version":[{"id":3279,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3278\/revisions\/3279"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3278"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3278"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}