maketrans()方法返回的字符串intab每个字符映射到字符的字符串outtab相同位置的转换表。然后这个表被传递到translate()函数。
注意:两个intab和outtab必须具有相同的长度。
语法
以下是maketrans()方法的语法:
str.maketrans(intab, outtab]);
参数
- intab -- 这是实际字符的字符串。
- outtab -- 这是相应的映射的字符的字符串。
返回值
此方法返回时使用转换表translate()函数。
例子
下面的例子显示maketrans()方法的使用。在此,在一个字符串中每一个元音替换它的元音的位置:
#!/usr/bin/python from string import maketrans # Required to call maketrans function. intab = "aeiou" outtab = "12345" trantab = maketrans(intab, outtab) str = "this is string example....wow!!!"; print str.translate(trantab);
当我们运行上面的程序,它会产生以下结果:
th3s 3s str3ng 2x1mpl2....w4w!!!

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