摘要：检测开头&结尾开头：startswith()url = 'http://www.python.org' url.startswith('http') >>>True 结尾：endswith() url = 'http://www.python.org' url.endswith('org') >>> 阅读全文

摘要：1》sys.exit() >>> import sys>>> help(sys.exit)Help on built-in function exit in module sys:exit(...) exit([status]) Exit the interpreter by raising Sys 阅读全文