在Python中处理字符串之isdecimal()方法的使用
isdecimal()方法检查字符串是否仅由十进制字符组成。此方法只存在于unicode对象。
注意：要定义一个字符串为Unicode，只需前缀分配'u'左引号。以下是示例。
语法
以下是isdecimal()方法的语法：
str.isdecimal()
参数
- NA
返回值
如果字符串中的所有字符为十进制此方法返回true，否则返回false。
例子
下面的例子显示了isdecimal()方法的使用。
#!/usr/bin/python str = u"this2009"; print str.isdecimal(); str = u"23443434"; print str.isdecimal();
当我们运行上面的程序，它会产生以下结果：
False True
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