string 模块 maketrans函数和 translate函数的用法

最新推荐文章于 2024-03-10 21:35:24 发布

最新推荐文章于 2024-03-10 21:35:24 发布 · 413 阅读

文章标签：

#python

本文详细解析了Python中字符串方法translate和maketrans的使用方式，包括基本语法、实例演示以及如何对字符串进行更灵活的过滤与转换。通过封装函数，实现了对特定字符集的高效处理，展示了解决实际问题的实用技巧。

部署运行你感兴趣的模型镜像

string.maketrans(from,to)
Return a translation table suitable for passing totranslate(), that will map each character infrominto the character at the same position into;fromandtomust have the same length.

2.

string.translate(s,table[,deletechars])
Delete all characters from s that are in deletechars (if present), and then translate the characters using table, which must be a 256-character string giving the translation for each character value, indexed by its ordinal. If table isNone, then only the character deletion step is performed.

例子1：

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);

输出结果：

>>>

th3s 3s str3ng 2x1mpl2....w4w!!!

例子2：

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, 'xm');

输出结果: