利用jquery修改href的部分字符

试了好久

就一句代码即可。

$(document).ready(function(){
    $('a').each(function(){
        this.href = this.href.replace('ys_yinqin', 'others');
    });
});

如果是替换href整个字符有以下方法：

来源于：http://stackoverflow.com/questions/179713/how-to-change-the-href-for-a-hyperlink-using-jquery/28016553#28016553

_{Even though the OP explicitly asked for a jQuery answer, you don't need to use jQuery for everything these days.}

1.纯 javascript写的

A few methods without jQuery:

• If you want to change the href value of all <a> elements, select them all and then iterate through the nodelist: (example)

  var anchors = document.querySelectorAll('a');
  Array.prototype.forEach.call(anchors, function (element, index) {
      element.href = "http://stackoverflow.com";
  });

• If you want to change the href value of all <a> elements that actually have an hrefattribute, select them by adding the [href] attribute selector (a[href]): (example)

  var anchors = document.querySelectorAll('a[href]');
  Array.prototype.forEach.call(anchors, function (element, index) {
      element.href = "http://stackoverflow.com";
  });

• If you want to change the href value of <a> elements that contain a specific value, for instance google.com, use the attribute selector a[href*="google.com"]: (example)

  var anchors = document.querySelectorAll('a[href*="google.com"]');
  Array.prototype.forEach.call(anchors, function (element, index) {
      element.href = "http://stackoverflow.com";
  });

  Likewise, you can also use the other attribute selectors. For instance:

  • a[href$=".png"] could be used to select <a> elements whose href value ends with .png.

  • a[href^="https://"] could be used to select <a> elements with href values that are prefixed with https://.

• If you want to change the href value of <a> elements that satisfy multiple conditions: (example)

  var anchors = document.querySelectorAll('a[href^="https://"], a[href$=".png"]');
  Array.prototype.forEach.call(anchors, function (element, index) {
      element.href = "http://stackoverflow.com";
  });

..no need for regex, in most cases.

2.jquery写的

$("a").attr("href", "http://www.google.com/")

...Will modify the href of all hyperlinks to point to Google. You probably want a somewhat more refined selector though. For instance, if you have a mix of link source (hyperlink) and link target (a.k.a. "anchor") anchor tags:

<a name="MyLinks"></a>
<a href="http://www.codeproject.com/>The CodeProject</a>

...Then you probably don't want to accidentally add href attributes to them. For safety then, we can specify that our selector will only match <a> tags with an existing href attribute:

$("a[href]") //...

Of course, you'll probably have something more interesting in mind. If you want to match an anchor with a specific existing href, you might use something like this:

$("a[href='http://www.google.com/']").attr('href', 'http://www.live.com/')

This will find links where the href exactly matches the string http://www.google.com/. A more involved task might be matching, then updating only part of the href:

$("a[href^='http://stackoverflow.com']")
   .each(function()
   { 
      this.href = this.href.replace(/^http://beta.stackoverflow.com/, 
         "http://stackoverflow.com");
   });

The first part selects only links where the href starts with http://stackoverflow.com. Then, a function is defined that uses a simple regular expression to replace this part of the URL with a new one. Note the flexibility this gives you - any sort of modification to the link could be done here.