{"id":1026,"date":"2023-03-24T09:47:07","date_gmt":"2023-03-24T01:47:07","guid":{"rendered":""},"modified":"2023-03-24T09:47:07","modified_gmt":"2023-03-24T01:47:07","slug":"Python \u6570\u7ec4","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/1026.html","title":{"rendered":"Python \u6570\u7ec4"},"content":{"rendered":"


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Python \u6570\u7ec4<\/h1>\n

\u641e\u61c2Python\u6570\u7ec4\u7684\u57fa\u672c\u64cd\u4f5c<\/span>\n <\/div>\n

\u6570\u7ec4\uff08array\uff09\u4e0e\u5217\u8868\uff08list\uff09\u7684\u533a\u522b<\/h2>\n
\n \u6570\u7ec4\u4e5f\u662f\u5e8f\u5217\u7c7b\u578b\u548c\u5217\u8868\u975e\u5e38\u7c7b\u4f3c\uff0c\u9664\u4e86\u6570\u7ec4\u5b58\u50a8\u5bf9\u8c61\u7684\u7c7b\u578b\u662f\u53d7\u7ea6\u675f\u7684\u5916\uff0c\u5176\u5b83\u548c\u5217\u8868\u7c7b\u4f3c\u3002\n <\/div>\n

\u6570\u7ec4\u53ea\u80fd\u591f\u4fdd\u5b58\u76f8\u540c\u7c7b\u578b\u7684\u5143\u7d20,\u800c\u5217\u8868\u5b58\u653e\u7684\u5143\u7d20\u7c7b\u578b\u4e0d\u53d7\u9650\u5236\uff0c\u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\u3002<\/span>
\n \u6570\u7ec4\u548c\u5217\u8868\u63d0\u4f9b\u7684\u64cd\u4f5c\u65b9\u6cd5\u57fa\u672c\u4e00\u81f4,\u90fd\u6709append,insert,pop extend,index\u7b49\u64cd\u4f5c\u65b9\u6cd5\u3002<\/span>
\n \u5bf9\u5168\u662f\u6570\u5b57\u7c7b\u578b\u7684\u5143\u7d20\u64cd\u4f5c\u4e2d,\u6570\u7ec4\u7684\u64cd\u4f5c\u6548\u7387\u6bd4\u5217\u8868\u8981\u5feb\u5f88\u591a\u3002<\/span> <\/p>\n

\n Python\u6570\u7ec4\u7684\u7ed3\u6784\u548c\u5217\u8868\u4e00\u6837\u662f\u7528\u65b9\u62ec\u53f7[], \u5e76\u7528\u9017\u53f7\u5206\u5272\u5143\u7d20\uff0c\u4f8b\u5982:\n <\/div>\n
\n
 animal = ['cat', 'dog', 'pig', 'cow']<\/span>
 print(animal<\/span>) <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n    \u6267\u884c\u7ed3\u679c\uff1a\n  <\/div>\n
\n
['cat', 'dog', 'pig', 'cow']<\/span><\/code><\/pre>\n<\/p><\/div>\n
\u6570\u7ec4\u5143\u7d20\u8bbf\u95ee\u4e0e\u4fee\u6539<\/h2>\n
\n    \u6570\u7ec4\u7684\u5143\u7d20\u901a\u8fc7\u7d22\u5f15\u8fdb\u884c\u8bbf\u95ee\uff0c\u4f8b\u5982\uff1a\n  <\/div>\n
\n
 animal = ['cat', 'dog', 'pig', 'cow']<\/span>
 x = animal[0]<\/span>
 animal[1] = 'lion'<\/span>
 print(x<\/span>) print(animal[1]<\/span>) <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n    \u6267\u884c\u7ed3\u679c\uff1a\n  <\/div>\n
\n
cat<\/span> \n
 \nlion<\/span><\/code><\/pre>\n<\/p><\/div>\n
\u6570\u7ec4\u957f\u5ea6<\/h2>\n
\n    \u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u53ef\u4ee5\u4f7f\u7528 len()\u65b9\u6cd5\uff0c\u5373\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6570\u91cf\u3002\u4f8b\u5982\uff1a\n  <\/div>\n
\n
 animal = ['cat', 'dog', 'pig', 'cow']<\/span>
 x = len(animal)<\/span>
 print(x<\/span>) <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n    \u6267\u884c\u7ed3\u679c\uff1a\n  <\/div>\n
\n
4<\/span><\/code><\/pre>\n<\/p><\/div>\n
\u6570\u7ec4\u904d\u5386<\/h2>\n
\n    \u6570\u7ec4\u7684\u904d\u5386\u53ef\u4ee5\u4f7f\u7528for in\u8fdb\u884c\u5faa\u73af\uff0c\u6309\u7167\u5143\u7d20\u6392\u5217\u987a\u5e8f\u8fdb\u884c\u904d\u5386\u3002\u4f8b\u5982\uff1a\n  <\/div>\n
\n
 animal = ['cat', 'dog', 'pig', 'cow']<\/span>
 for x in animal:<\/span>
   print(x<\/span>) <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n    \u6267\u884c\u7ed3\u679c\uff1a\n  <\/div>\n
\n
cat<\/span> \n
 \ndog<\/span> \n
 \npig<\/span> \n
 \ncow<\/span><\/code><\/pre>\n<\/p><\/div>\n
\u5143\u7d20\u6dfb\u52a0\u548c\u5220\u9664<\/h2>\n
\n    \u6570\u7ec4\u7684\u6dfb\u52a0\u53ef\u4ee5\u4f7f\u7528 append()\u548cinsert()\u65b9\u6cd5\uff0c\u5220\u9664\u53ef\u4ee5\u4f7f\u7528remove()\u548cpop()\u65b9\u6cd5\u3002\u4f8b\u5982\uff1a\n  <\/div>\n
\n
 animal = ['cat', 'dog', 'pig', 'cow']<\/span>
 animal.append('wolf')<\/span> # \u8ffd\u52a0\u5143\u7d20\uff0c\u6dfb\u52a0\u5230\u672b\u5c3e<\/span>
 print(animal<\/span>)
 animal.pop(1)<\/span> # \u5220\u9664\u7b2c2\u4e2a\u5143\u7d20<\/span>
 print(animal<\/span>)
 animal.remove('cat')<\/span> # \u6839\u636e\u5143\u7d20\u503c\u8fdb\u884c\u5220\u9664<\/span>
 print(animal<\/span>)
 animal.insert(0, 'cat')<\/span> # \u5728\u7b2c\u4e00\u4e2a\u5143\u7d20\u540e\u63d2\u5165cat<\/span>
 print(animal<\/span>) <\/span><\/code><\/pre>\n<\/p><\/div>\n
\n    \u6267\u884c\u7ed3\u679c\uff1a\n  <\/div>\n
\n
cat, dog, pig, cow , wolf<\/span> \n
 \ncat, pig, cow , wolf<\/span> \n
 \npig, cow , wolf<\/span> \n
 \ncat, pig, cow , wolf<\/span><\/code><\/pre>\n<\/p><\/div>\n
\u6570\u7ec4\u64cd\u4f5c\u65b9\u6cd5<\/h2>\n
\n    Python\u63d0\u4f9b\u4e00\u7ec4\u53ef\u4ee5\u5728\u5217\u8868\u6216\u6570\u7ec4\u4e0a\u4f7f\u7528\u7684\u64cd\u4f5c\u65b9\u6cd5:\n  <\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u5e8f\u53f7<\/td>\n \u65b9\u6cd5<\/td>\n<\/tr>\n
1<\/td>\nlist.append(obj)
\u5728\u5217\u8868\u672b\u5c3e\u6dfb\u52a0\u65b0\u7684\u5bf9\u8c61<\/td>\n<\/tr>\n
2<\/td>\nlist.count(obj)
\u7edf\u8ba1\u67d0\u4e2a\u5143\u7d20\u5728\u5217\u8868\u4e2d\u51fa\u73b0\u7684\u6b21\u6570<\/td>\n<\/tr>\n
3<\/td>\nlist.extend(seq)
\u5728\u5217\u8868\u672b\u5c3e\u4e00\u6b21\u6027\u8ffd\u52a0\u53e6\u4e00\u4e2a\u5e8f\u5217\u4e2d\u7684\u591a\u4e2a\u503c\uff08\u7528\u65b0\u5217\u8868\u6269\u5c55\u539f\u6765\u7684\u5217\u8868\uff09<\/td>\n<\/tr>\n
4<\/td>\nlist.index(obj)
\u4ece\u5217\u8868\u4e2d\u627e\u51fa\u67d0\u4e2a\u503c\u7b2c\u4e00\u4e2a\u5339\u914d\u9879\u7684\u7d22\u5f15\u4f4d\u7f6e<\/td>\n<\/tr>\n
5<\/td>\nlist.insert(index, obj)
\u5c06\u5bf9\u8c61\u63d2\u5165\u5217\u8868<\/td>\n<\/tr>\n
6<\/td>\nlist.pop([index=-1])
\u79fb\u9664\u5217\u8868\u4e2d\u7684\u4e00\u4e2a\u5143\u7d20\uff08\u9ed8\u8ba4\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff09\uff0c\u5e76\u4e14\u8fd4\u56de\u8be5\u5143\u7d20\u7684\u503c<\/td>\n<\/tr>\n
7<\/td>\nlist.remove(obj)
\u79fb\u9664\u5217\u8868\u4e2d\u67d0\u4e2a\u503c\u7684\u7b2c\u4e00\u4e2a\u5339\u914d\u9879<\/td>\n<\/tr>\n
8<\/td>\nlist.reverse()
\u53cd\u5411\u5217\u8868\u4e2d\u5143\u7d20<\/td>\n<\/tr>\n
9<\/td>\n list.sort( key=None, reverse=False)
\u5bf9\u539f\u5217\u8868\u8fdb\u884c\u6392\u5e8f<\/td>\n<\/tr>\n
10<\/td>\nlist.clear()
\u6e05\u7a7a\u5217\u8868<\/td>\n<\/tr>\n
11<\/td>\nlist.copy()
\u590d\u5236\u5217\u8868<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
 <\/body>
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