{"id":1186605,"date":"2025-01-15T19:54:37","date_gmt":"2025-01-15T11:54:37","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1186605.html"},"modified":"2025-01-15T19:54:39","modified_gmt":"2025-01-15T11:54:39","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e6%b8%85%e7%a9%ba%e6%95%b4%e4%b8%aa%e5%88%97%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1186605.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u6e05\u7a7a\u6574\u4e2a\u5217\u8868"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u6e05\u7a7a\u6574\u4e2a\u5217\u8868\"<\/p>\n

\u5728Python\u4e2d\u6e05\u7a7a\u6574\u4e2a\u5217\u8868\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5982\u4f7f\u7528clear()\u65b9\u6cd5\u3001\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u3001\u4f7f\u7528\u5207\u7247\u3001\u4f7f\u7528del\u8bed\u53e5<\/strong>\u3002\u5176\u4e2d\uff0c\u4f7f\u7528clear()\u65b9\u6cd5<\/strong>\u662f\u6700\u7b80\u5355\u4e14\u63a8\u8350\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

\u4f7f\u7528clear()\u65b9\u6cd5<\/h3>\n<\/p>\n

clear()\u65b9\u6cd5<\/strong>\u662fPython\u5217\u8868\u5185\u7f6e\u7684\u65b9\u6cd5\u4e4b\u4e00\uff0c\u7528\u4e8e\u79fb\u9664\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002\u8fd9\u4e2a\u65b9\u6cd5\u7684\u4f18\u70b9\u5728\u4e8e\u5b83\u662f\u4e13\u95e8\u4e3a\u6e05\u7a7a\u5217\u8868\u8bbe\u8ba1\u7684\uff0c\u56e0\u6b64\u5176\u8bed\u6cd5\u7b80\u5355\u4e14\u6613\u4e8e\u7406\u89e3\u3002<\/p>\n<\/p>\n

my_list = [1, 2, 3, 4, 5]<\/p>\n
my_list.clear()<\/p>\n
print(my_list)  # \u8f93\u51fa: []<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528clear()\u65b9\u6cd5\u7684\u8be6\u7ec6\u63cf\u8ff0\uff1a<\/h4>\n<\/p>\n
clear()\u65b9\u6cd5<\/strong>\u4e0d\u4ec5\u8bed\u6cd5\u7b80\u5355\uff0c\u800c\u4e14\u662f\u4e13\u95e8\u4e3a\u6e05\u7a7a\u5217\u8868\u8bbe\u8ba1\u7684\uff0c\u6027\u80fd\u4e0a\u4e5f\u975e\u5e38\u9ad8\u6548\u3002\u4e0e\u5176\u4ed6\u65b9\u6cd5\u76f8\u6bd4\uff0cclear()\u65b9\u6cd5\u7684\u4ee3\u7801\u66f4\u5177\u53ef\u8bfb\u6027\uff0c\u9002\u5408\u4e8e\u9700\u8981\u9891\u7e41\u6e05\u7a7a\u5217\u8868\u7684\u573a\u666f\u3002\u5728\u56e2\u961f\u5f00\u53d1\u4e2d\uff0c\u4f7f\u7528clear()\u65b9\u6cd5\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u5177\u4e00\u81f4\u6027\u548c\u89c4\u8303\u6027\u3002\u7531\u4e8eclear()\u662f\u5217\u8868\u5bf9\u8c61\u7684\u5185\u7f6e\u65b9\u6cd5\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u989d\u5916\u7684\u5bfc\u5165\u548c\u914d\u7f6e\uff0c\u76f4\u63a5\u8c03\u7528\u5373\u53ef\uff0c\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<\/p>\n
\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868<\/h3>\n<\/p>\n
\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u662f\u53e6\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u3002\u5b83\u901a\u8fc7\u5c06\u5217\u8868\u91cd\u65b0\u8d4b\u503c\u4e3a\u4e00\u4e2a\u7a7a\u5217\u8868\u6765\u5b9e\u73b0\u6e05\u7a7a\u7684\u6548\u679c\u3002<\/p>\n<\/p>\n
my_list = [1, 2, 3, 4, 5]<\/p>\n
my_list = []<\/p>\n
print(my_list)  # \u8f93\u51fa: []<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u5207\u7247<\/h3>\n<\/p>\n
\u4f7f\u7528\u5207\u7247\u4e5f\u662f\u4e00\u79cd\u6e05\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u5c06\u5217\u8868\u7684\u6240\u6709\u5143\u7d20\u7528\u5207\u7247\u8d4b\u503c\u4e3a\u7a7a\uff0c\u53ef\u4ee5\u8fbe\u5230\u6e05\u7a7a\u5217\u8868\u7684\u6548\u679c\u3002<\/p>\n<\/p>\n
my_list = [1, 2, 3, 4, 5]<\/p>\n
my_list[:] = []<\/p>\n
print(my_list)  # \u8f93\u51fa: []<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528del\u8bed\u53e5<\/h3>\n<\/p>\n
\u4f7f\u7528del\u8bed\u53e5\u53ef\u4ee5\u5220\u9664\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002\u8fd9\u4e2a\u65b9\u6cd5\u6bd4\u8f83\u7075\u6d3b\uff0c\u53ef\u4ee5\u5220\u9664\u5217\u8868\u4e2d\u7684\u90e8\u5206\u6216\u5168\u90e8\u5143\u7d20\u3002<\/p>\n<\/p>\n
my_list = [1, 2, 3, 4, 5]<\/p>\n
del my_list[:]<\/p>\n
print(my_list)  # \u8f93\u51fa: []<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecdPython\u4e2d\u6e05\u7a7a\u5217\u8868\u7684\u5404\u4e2a\u65b9\u6cd5\u53ca\u5176\u5e94\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n
\u4e00\u3001\u4f7f\u7528clear()\u65b9\u6cd5<\/h2>\n<\/p>\n
clear()\u65b9\u6cd5\u7684\u4f18\u52bf<\/h3>\n<\/p>\n
clear()\u65b9\u6cd5\u662fPython\u5217\u8868\u7684\u5185\u7f6e\u65b9\u6cd5\uff0c\u4e13\u95e8\u7528\u4e8e\u79fb\u9664\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002\u5176\u8bed\u6cd5\u7b80\u6d01\u4e14\u6613\u4e8e\u7406\u89e3\uff0c\u9002\u5408\u5927\u591a\u6570\u5f00\u53d1\u573a\u666f\u3002<\/p>\n<\/p>\n
my_list = [1, 2, 3, 4, 5]<\/p>\n
my_list.clear()<\/p>\n
print(my_list)  # \u8f93\u51fa: []<\/p>\n
<\/code><\/pre>\n<\/p>\n
clear()\u65b9\u6cd5\u7684\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
clear()\u65b9\u6cd5\u9002\u7528\u4e8e\u9700\u8981\u9891\u7e41\u6e05\u7a7a\u5217\u8868\u7684\u573a\u666f\uff0c\u4f8b\u5982\u5728\u5faa\u73af\u4e2d\u591a\u6b21\u4f7f\u7528\u5217\u8868\u3002\u7531\u4e8eclear()\u65b9\u6cd5\u662f\u5185\u7f6e\u65b9\u6cd5\uff0c\u6267\u884c\u6548\u7387\u8f83\u9ad8\uff0c\u9002\u5408\u6027\u80fd\u8981\u6c42\u8f83\u9ad8\u7684\u5e94\u7528\u3002<\/p>\n<\/p>\n
for i in range(10):<\/p>\n
    my_list = [1, 2, 3, 4, 5]<\/p>\n
    # \u8fdb\u884c\u4e00\u4e9b\u64cd\u4f5c<\/p>\n
    my_list.clear()<\/p>\n
    # \u7ee7\u7eed\u4e0b\u4e00\u6b21\u5faa\u73af<\/p>\n
<\/code><\/pre>\n<\/p>\n
clear()\u65b9\u6cd5\u7684\u6027\u80fd\u5206\u6790<\/h3>\n<\/p>\n
\u7531\u4e8eclear()\u65b9\u6cd5\u662f\u4e13\u95e8\u8bbe\u8ba1\u7528\u4e8e\u6e05\u7a7a\u5217\u8868\u7684\uff0c\u56e0\u6b64\u5176\u6027\u80fd\u8f83\u5176\u4ed6\u65b9\u6cd5\u66f4\u4e3a\u4f18\u8d8a\u3002\u5bf9\u4e8e\u5927\u6570\u636e\u91cf\u7684\u5217\u8868\uff0cclear()\u65b9\u6cd5\u7684\u6267\u884c\u6548\u7387\u5c24\u4e3a\u660e\u663e\u3002<\/p>\n<\/p>\n
import time<\/p>\n
\u6d4b\u8bd5clear\u65b9\u6cd5\u7684\u6027\u80fd<\/strong><\/h2>\n
start_time = time.time()<\/p>\n
my_list = list(range(1000000))<\/p>\n
my_list.clear()<\/p>\n
end_time = time.time()<\/p>\n
print("clear\u65b9\u6cd5\u8017\u65f6:", end_time - start_time)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868<\/h2>\n<\/p>\n
\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u4f18\u52bf<\/h3>\n<\/p>\n
\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\u7b80\u5355\u76f4\u89c2\uff0c\u901a\u8fc7\u5c06\u5217\u8868\u91cd\u65b0\u8d4b\u503c\u4e3a\u4e00\u4e2a\u7a7a\u5217\u8868\uff0c\u53ef\u4ee5\u5feb\u901f\u6e05\u7a7a\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002<\/p>\n<\/p>\n
my_list = [1, 2, 3, 4, 5]<\/p>\n
my_list = []<\/p>\n
print(my_list)  # \u8f93\u51fa: []<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u4e34\u65f6\u9700\u8981\u6e05\u7a7a\u5217\u8868\u7684\u573a\u666f\uff0c\u4f8b\u5982\u5728\u51fd\u6570\u5185\u90e8\u4f7f\u7528\u5217\u8868\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u65b9\u5f0f\u6765\u6e05\u7a7a\u5217\u8868\u3002<\/p>\n<\/p>\n
def process_list():<\/p>\n
    my_list = [1, 2, 3, 4, 5]<\/p>\n
    # \u8fdb\u884c\u4e00\u4e9b\u64cd\u4f5c<\/p>\n
    my_list = []<\/p>\n
    return my_list<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u6027\u80fd\u5206\u6790<\/h3>\n<\/p>\n
\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\u6267\u884c\u901f\u5ea6\u8f83\u5feb\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u4f1a\u5f71\u54cd\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002\u5bf9\u4e8e\u8f83\u5c0f\u7684\u6570\u636e\u91cf\uff0c\u8fd9\u79cd\u65b9\u6cd5\u7684\u6027\u80fd\u8868\u73b0\u826f\u597d\u3002<\/p>\n<\/p>\n
import time<\/p>\n
\u6d4b\u8bd5\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\u6027\u80fd<\/strong><\/h2>\n
start_time = time.time()<\/p>\n
my_list = list(range(1000000))<\/p>\n
my_list = []<\/p>\n
end_time = time.time()<\/p>\n
print("\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\u8017\u65f6:", end_time - start_time)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u5207\u7247<\/h2>\n<\/p>\n
\u4f7f\u7528\u5207\u7247\u7684\u4f18\u52bf<\/h3>\n<\/p>\n
\u4f7f\u7528\u5207\u7247\u6e05\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\u6bd4\u8f83\u7075\u6d3b\uff0c\u901a\u8fc7\u5c06\u5217\u8868\u7684\u6240\u6709\u5143\u7d20\u7528\u5207\u7247\u8d4b\u503c\u4e3a\u7a7a\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6e05\u7a7a\u5217\u8868\u7684\u6548\u679c\u3002<\/p>\n<\/p>\n
my_list = [1, 2, 3, 4, 5]<\/p>\n
my_list[:] = []<\/p>\n
print(my_list)  # \u8f93\u51fa: []<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u5207\u7247\u7684\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u9700\u8981\u4fdd\u7559\u5217\u8868\u5bf9\u8c61\u7684\u573a\u666f\uff0c\u4f8b\u5982\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5f15\u7528\u95ee\u9898\uff0c\u800c\u4f7f\u7528\u5207\u7247\u53ef\u4ee5\u907f\u514d\u8fd9\u4e00\u95ee\u9898\u3002<\/p>\n<\/p>\n
def clear_list(lst):<\/p>\n
    lst[:] = []<\/p>\n
    return lst<\/p>\n
original_list = [1, 2, 3, 4, 5]<\/p>\n
new_list = clear_list(original_list)<\/p>\n
print(new_list)  # \u8f93\u51fa: []<\/p>\n
print(original_list)  # \u8f93\u51fa: []<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u5207\u7247\u7684\u6027\u80fd\u5206\u6790<\/h3>\n<\/p>\n
\u4f7f\u7528\u5207\u7247\u6e05\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\u5728\u6027\u80fd\u4e0a\u4e0e\u5176\u4ed6\u65b9\u6cd5\u76f8\u5dee\u4e0d\u5927\uff0c\u9002\u5408\u5927\u591a\u6570\u5e94\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n
import time<\/p>\n
\u6d4b\u8bd5\u4f7f\u7528\u5207\u7247\u7684\u65b9\u6cd5\u6027\u80fd<\/strong><\/h2>\n
start_time = time.time()<\/p>\n
my_list = list(range(1000000))<\/p>\n
my_list[:] = []<\/p>\n
end_time = time.time()<\/p>\n
print("\u4f7f\u7528\u5207\u7247\u7684\u65b9\u6cd5\u8017\u65f6:", end_time - start_time)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u4f7f\u7528del\u8bed\u53e5<\/h2>\n<\/p>\n
\u4f7f\u7528del\u8bed\u53e5\u7684\u4f18\u52bf<\/h3>\n<\/p>\n
del\u8bed\u53e5\u53ef\u4ee5\u5220\u9664\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u4f7f\u7528\u7075\u6d3b\uff0c\u53ef\u4ee5\u5220\u9664\u5217\u8868\u4e2d\u7684\u90e8\u5206\u6216\u5168\u90e8\u5143\u7d20\u3002<\/p>\n<\/p>\n
my_list = [1, 2, 3, 4, 5]<\/p>\n
del my_list[:]<\/p>\n
print(my_list)  # \u8f93\u51fa: []<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528del\u8bed\u53e5\u7684\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u9700\u8981\u5220\u9664\u5217\u8868\u4e2d\u90e8\u5206\u5143\u7d20\u7684\u573a\u666f\uff0c\u901a\u8fc7del\u8bed\u53e5\u53ef\u4ee5\u7cbe\u786e\u63a7\u5236\u9700\u8981\u5220\u9664\u7684\u5143\u7d20\u8303\u56f4\u3002<\/p>\n<\/p>\n
def remove_elements(lst, start, end):<\/p>\n
    del lst[start:end]<\/p>\n
    return lst<\/p>\n
my_list = [1, 2, 3, 4, 5]<\/p>\n
new_list = remove_elements(my_list, 1, 4)<\/p>\n
print(new_list)  # \u8f93\u51fa: [1, 5]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528del\u8bed\u53e5\u7684\u6027\u80fd\u5206\u6790<\/h3>\n<\/p>\n
del\u8bed\u53e5\u7684\u6027\u80fd\u8f83\u4e3a\u7a33\u5b9a\uff0c\u9002\u5408\u5404\u79cd\u6570\u636e\u91cf\u7684\u5217\u8868\u64cd\u4f5c\u3002\u5728\u5904\u7406\u5927\u6570\u636e\u91cf\u65f6\uff0cdel\u8bed\u53e5\u7684\u6027\u80fd\u8868\u73b0\u4e5f\u8f83\u4e3a\u4f18\u8d8a\u3002<\/p>\n<\/p>\n
import time<\/p>\n
\u6d4b\u8bd5del\u8bed\u53e5\u7684\u65b9\u6cd5\u6027\u80fd<\/strong><\/h2>\n
start_time = time.time()<\/p>\n
my_list = list(range(1000000))<\/p>\n
del my_list[:]<\/p>\n
end_time = time.time()<\/p>\n
print("del\u8bed\u53e5\u7684\u65b9\u6cd5\u8017\u65f6:", end_time - start_time)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u603b\u7ed3<\/h2>\n<\/p>\n
\u5404\u65b9\u6cd5\u7684\u9002\u7528\u573a\u666f\u548c\u6027\u80fd\u6bd4\u8f83<\/h3>\n<\/p>\n
\u5728\u6e05\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\u4e2d\uff0cclear()\u65b9\u6cd5<\/strong>\u662f\u6700\u63a8\u8350\u7684\u65b9\u6cd5\uff0c\u5177\u6709\u8bed\u6cd5\u7b80\u5355\u3001\u6027\u80fd\u9ad8\u6548\u7b49\u4f18\u70b9\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u573a\u666f\u3002\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868<\/strong>\u7684\u65b9\u6cd5\u76f4\u89c2\u6613\u61c2\uff0c\u9002\u5408\u4e34\u65f6\u6e05\u7a7a\u5217\u8868\u7684\u573a\u666f\u3002\u4f7f\u7528\u5207\u7247<\/strong>\u7684\u65b9\u6cd5\u7075\u6d3b\u591a\u6837\uff0c\u9002\u7528\u4e8e\u9700\u8981\u4fdd\u7559\u5217\u8868\u5bf9\u8c61\u7684\u573a\u666f\u3002del\u8bed\u53e5<\/strong>\u7684\u65b9\u6cd5\u7cbe\u786e\u63a7\u5236\u5220\u9664\u8303\u56f4\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5220\u9664\u90e8\u5206\u5143\u7d20\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
\u6027\u80fd\u6bd4\u8f83<\/h3>\n<\/p>\n
\u901a\u8fc7\u6027\u80fd\u6d4b\u8bd5\u53ef\u4ee5\u53d1\u73b0\uff0c\u5728\u5927\u6570\u636e\u91cf\u7684\u60c5\u51b5\u4e0b\uff0cclear()\u65b9\u6cd5\u548cdel\u8bed\u53e5\u7684\u65b9\u6cd5\u6027\u80fd\u8f83\u4f18\uff0c\u800c\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u548c\u4f7f\u7528\u5207\u7247\u7684\u65b9\u6cd5\u5728\u6027\u80fd\u4e0a\u76f8\u5dee\u4e0d\u5927\uff0c\u9002\u5408\u5c0f\u6570\u636e\u91cf\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n
import time<\/p>\n
\u6d4b\u8bd5\u6240\u6709\u65b9\u6cd5\u7684\u6027\u80fd<\/strong><\/h2>\n
methods = [<\/p>\n
    ("clear\u65b9\u6cd5", lambda lst: lst.clear()),<\/p>\n
    ("\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u65b9\u6cd5", lambda lst: lst := []),<\/p>\n
    ("\u4f7f\u7528\u5207\u7247\u7684\u65b9\u6cd5", lambda lst: lst[:] = []),<\/p>\n
    ("del\u8bed\u53e5\u7684\u65b9\u6cd5", lambda lst: del lst[:])<\/p>\n
]<\/p>\n
for name, method in methods:<\/p>\n
    start_time = time.time()<\/p>\n
    my_list = list(range(1000000))<\/p>\n
    method(my_list)<\/p>\n
    end_time = time.time()<\/p>\n
    print(f"{name}\u8017\u65f6:", end_time - start_time)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u9009\u62e9<\/h3>\n<\/p>\n
\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u9009\u62e9\u9002\u5408\u7684\u65b9\u6cd5\u975e\u5e38\u91cd\u8981\u3002\u5728\u56e2\u961f\u5f00\u53d1\u4e2d\uff0c\u63a8\u8350\u4f7f\u7528clear()\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u5177\u6709\u8f83\u9ad8\u7684\u53ef\u8bfb\u6027\u548c\u4e00\u81f4\u6027\u3002\u5728\u9700\u8981\u4e34\u65f6\u6e05\u7a7a\u5217\u8868\u7684\u573a\u666f\u4e2d\uff0c\u53ef\u4ee5\u9009\u62e9\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u7684\u65b9\u6cd5\u3002\u5bf9\u4e8e\u9700\u8981\u4fdd\u7559\u5217\u8868\u5bf9\u8c61\u7684\u573a\u666f\uff0c\u4f7f\u7528\u5207\u7247\u7684\u65b9\u6cd5\u66f4\u52a0\u7075\u6d3b\u3002\u5982\u679c\u9700\u8981\u7cbe\u786e\u63a7\u5236\u5220\u9664\u8303\u56f4\uff0c\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528del\u8bed\u53e5\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u7ed3\u8bba<\/h3>\n<\/p>\n
\u901a\u8fc7\u5bf9Python\u4e2d\u6e05\u7a7a\u5217\u8868\u7684\u591a\u79cd\u65b9\u6cd5\u7684\u8be6\u7ec6\u4ecb\u7ecd\u548c\u6027\u80fd\u5206\u6790\uff0c\u53ef\u4ee5\u770b\u51fa\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u52bf\u548c\u9002\u7528\u573a\u666f\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6267\u884c\u6548\u7387\u3002\u65e0\u8bba\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\uff0c\u90fd\u9700\u8981\u6ce8\u610f\u4ee3\u7801\u7684\u89c4\u8303\u6027\u548c\u4e00\u81f4\u6027\uff0c\u786e\u4fdd\u56e2\u961f\u5f00\u53d1\u7684\u9ad8\u6548\u534f\u4f5c\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u6709\u6548\u6e05\u7a7a\u4e00\u4e2a\u5217\u8868\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u6e05\u7a7a\u4e00\u4e2a\u5217\u8868\u6709\u51e0\u79cd\u65b9\u6cd5\u3002\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528clear()<\/code>\u65b9\u6cd5\uff0c\u8fd9\u4f1a\u76f4\u63a5\u4fee\u6539\u539f\u59cb\u5217\u8868\u3002\u4f8b\u5982\uff1amy_list.clear()<\/code>\u3002\u53e6\u5916\uff0c\u4f60\u4e5f\u53ef\u4ee5\u901a\u8fc7\u91cd\u65b0\u8d4b\u503c\u4e00\u4e2a\u7a7a\u5217\u8868\u6765\u6e05\u7a7a\u5b83\uff0c\u5982\uff1amy_list = []<\/code>\u3002\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u80fd\u6709\u6548\u6e05\u7a7a\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002<\/p>\n
\u4f7f\u7528del\u8bed\u53e5\u6e05\u7a7a\u5217\u8868\u6709\u4ec0\u4e48\u7279\u522b\u4e4b\u5904\uff1f<\/strong>
\u4f7f\u7528del<\/code>\u8bed\u53e5\u53ef\u4ee5\u901a\u8fc7\u5220\u9664\u5217\u8868\u5bf9\u8c61\u6765\u6e05\u7a7a\u5217\u8868\u3002\u4f8b\u5982\uff0c\u4f7f\u7528del my_list[:]<\/code>\u53ef\u4ee5\u5220\u9664\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff0c\u800c\u4e0d\u9700\u8981\u521b\u5efa\u65b0\u7684\u5217\u8868\u5bf9\u8c61\u3002\u8fd9\u79cd\u65b9\u6cd5\u5728\u9700\u8981\u4fdd\u6301\u539f\u59cb\u5217\u8868\u7684\u5f15\u7528\u65f6\u7279\u522b\u6709\u7528\u3002<\/p>\n
\u6e05\u7a7a\u5217\u8868\u540e\u4f1a\u5f71\u54cd\u5230\u5f15\u7528\u8fd9\u4e2a\u5217\u8868\u7684\u53d8\u91cf\u5417\uff1f<\/strong>
\u5728\u4f7f\u7528clear()<\/code>\u65b9\u6cd5\u6216del<\/code>\u8bed\u53e5\u65f6\uff0c\u6240\u6709\u5f15\u7528\u8be5\u5217\u8868\u7684\u53d8\u91cf\u90fd\u4f1a\u770b\u5230\u5217\u8868\u88ab\u6e05\u7a7a\u7684\u6548\u679c\u3002\u8fd9\u662f\u56e0\u4e3a\u5b83\u4eec\u6307\u5411\u7684\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61\u3002\u5982\u679c\u4f60\u5e0c\u671b\u4e0d\u5f71\u54cd\u5176\u4ed6\u5f15\u7528\uff0c\u6700\u597d\u4f7f\u7528\u91cd\u65b0\u8d4b\u503c\u7684\u65b9\u6cd5\uff0c\u5982my_list = []<\/code>\u3002\u8fd9\u6837\uff0c\u5176\u4ed6\u53d8\u91cf\u4ecd\u7136\u4fdd\u7559\u539f\u59cb\u7684\u5217\u8868\u6570\u636e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u6e05\u7a7a\u6574\u4e2a\u5217\u8868\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5982\u4f7f\u7528clear()\u65b9\u6cd5\u3001\u91cd\u65b0\u8d4b\u503c\u4e3a\u7a7a\u5217\u8868\u3001\u4f7f\u7528\u5207\u7247\u3001\u4f7f\u7528del\u8bed\u53e5 […]","protected":false},"author":3,"featured_media":1186619,"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\/1186605"}],"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=1186605"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1186605\/revisions"}],"predecessor-version":[{"id":1186620,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1186605\/revisions\/1186620"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1186619"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1186605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1186605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1186605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}