Re: wrong!!! Re: 有没有 replaceall for Stri - 未名空间MITBBS历史存档

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Re: wrong!!! Re: 有没有 replaceall for Stri

Re: wrong!!! Re: 有没有 replaceall for Stri# Java - 爪哇娇娃

c*r2004-05-21 07:05

1 楼

To represent a predefined character in regular expression, just precede it
with \
Since \ is also a special character in java strings, you need another \
For example, "." should be written as "\\."

l*r2004-05-21 07:05

2 楼

that works. Thanks.
But as a curious, I just want to know how to write it if I want to repalce a
number \?
Such as I want to replace "\\\\\\\\" in a string with " ".

【在 c****r 的大作中提到】

: To represent a predefined character in regular expression, just precede it
: with \
: Since \ is also a special character in java strings, you need another \
: For example, "." should be written as "\\."

c*r2004-05-21 07:05

3 楼

The regex for a number of \ is \\+
So the java string should be "\\\\+"

where

【在 l********r 的大作中提到】

: that works. Thanks.
: But as a curious, I just want to know how to write it if I want to repalce a
: number \?
: Such as I want to replace "\\\\\\\\" in a string with " ".