我们可以使用比较运算符来判断字符串是否相等、大小关系,使用in关键字来判断字符串是否包含子字符串,使用startswith和endswith方法来判断字符串的前缀和后缀。这些方法可以帮助我们根据不同的条件来执行不同的操作,提高代码的灵活性和可读性。 希望本文对你理解Python中的字符串判断有所帮助。感谢阅读! 引用形式的描述信...
Python:startswith()、endswith()方法: 一、startswith()方法语法: string.startswith(str, beg=0,end=len(string)); 参数: str -- 检测的字符串。 strbeg -- 可选参数用于设置字符串检测的起始位置(可选,从左数起)。 strend -- 可选参数用于设置字符串检测的结束位置(可选,从左数起)。 返回值: 如...
In this tutorial, we are going to learn about how to check if a string starts with another substring in Python. Python has a built-in…
In this article we are going to check whether the string starts with the substring or not, It is useful for checking whether the string starts with the substring, which is helpful in tasks like filtering data or validating input. In Python there are various ways to perform this check, such...
name = input("请输入信息:") if name.endswith('hello'): if name.startswith('china'): print 'welcome to {}'.format(name) elif name.startswith('japan'): print 'say you {}'.format(name) else: print '输入有误,重新输入' print '游戏结束--->'...
name = input("请输入信息:")ifname.endswith('hello'):ifname.startswith('china'):print'welcome to {}'.format(name)elifname.startswith('japan'):print'say you {}'.format(name)else:print'输入有误,重新输入'else:print'游戏结束--->' 写...
如果希望根据行的起始字符执行不同的操作,可以同时使用line.startswith()和not line.startswith(),但在您的情况下,应该使用其中的一个。 我还要指出,这不是很Pythonic: if len(fname) < 1 : name = "mbox-short.txt" …尤其是len(fname) < 1。相反,我们应该使用Python中的空字符串是“falsy”这一事实...
If the condition is not true, then the statement in the body of the else statement is executed. The body of if and else statements starts with indentation. Let’s see an example of the implementation of the if…else statement. Python 1 2 3 4 5 6 7 i = 20; if (i < 15): ...
name ='hello xiao mi'if'hello'inname:if'xiao'inname:if'mi'inname:print(name)else:print('输入有误,重新输入')else:print('游戏结束--->')phone= input('请输入手机号:')ifphone.isdigit() ==True:ifphone.startswith('1'):iflen(phone)==11:passelse:print('手机号必现为11位数')else:prin...
string = "hello world" suffix = "world" if string[-len(suffix):] == suffix: print("String ends with suffix") Output String ends with suffix To check if a string or a substring of a string ends with a specific suffix in Python, you can use the str.endswith() method. This meth...