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HomeBackend DevelopmentPython Tutorial探究Python中isalnum()方法的使用

 isalnum()方法检查判断字符串是否包含字母数字字符。
语法

以下是isalnum()方法的语法:

str.isa1num()

参数

  •     NA

返回值

如果字符串中的所有字符字母数字和至少有一个字符此方法返回 true,否则返回false。
例子

下面的例子显示了isalnum()方法的使用。

#!/usr/bin/python

str = "this2009"; # No space in this string
print str.isalnum();

str = "this is string example....wow!!!";
print str.isalnum();

当我们运行上面的程序,它会产生以下结果:

True
False

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