jQuery:如何替换某些字符之间的所有字符? [英] JQuery: how to replace all between certain characters?

问题描述

我已经找到了解决这个问题的一般方法，但是只能找到人们特定问题的答案.

I have searched for a general solution to this but only find answers to peoples specific questions.

基本上，我想知道如何通常使用.replace()替换字符串中任何种类的字符之间的项目，例如:

Basically, I want to know how to generally use .replace() to replace items in between any kind of characters in a string, eg:

替换介于abc和xyz之间的所有文本，例如:abc text to be replaced xyz

Replace all text in between and inclusive of abc and xyz eg: abc text to be replaced xyz

或替换介于两者之间的所有文本，包括<img and />，例如:<img src="image.jpg" />

or replace all text in between and inclusive of <img and /> eg: <img src="image.jpg" />

有人能帮我这个忙吗?或为我指点一下?

Can anyone help me out or point me in the direction of a good tute on this?

谢谢！让我知道是否需要进一步说明.

Thanks! Let me know if I need to clarify more.

推荐答案

您要查找的内容称为正则表达式.有关更多信息，您可以访问以下网站: http://www.regular-expressions.info/

What you are looking for are called regular expressions. For more information, you can visit a site like: http://www.regular-expressions.info/

请注意，正则表达式并非特定于JavaScript.

Note that regular expressions are not specific to JavaScript.

对于您的具体示例:

string.replace(/abc.+xyz/,"abc"+newString+"xyz");

.表示任何字符，而+表示一个或多个事件.

. means any character, and + means one or more occurences.

如果您要进行多个替换，请尝试:

If you have more than one replacement to do, try:

string.replace(/abc.+?xyz/g,"abc"+newString+"xyz");

g代表将军，而?是惰性的量词，表示它将在字符串中xyz的下一次出现时停止.

g stands for general, and ? is the lazy quantifier, meaning that it will stop at the next occurence of xyz in the string.

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