javascript - 匹配引号之间的随机字符串正则表达式javascript

Question

我有这堆文本，我想返回ma​​7jq2s9xgoy

如何返回引号之间的 12 个随机代码，如下所示？

rpcService=ma7jq2s9xgoy" class="picker-frame" name="ma7jq2s9xgoy" id="ma7jq2s9xgoy" frameborder="0"></iframe></div><div style="display: none;" 

Answer 1

如果这实际上只是字符串而不是整个 HTML 集，那么您可以做某事。像:

var string = 'rpcService=ma7jq2s9xgoy" class="picker-frame" name="ma7jq2s9xgoy" id="ma7jq2s9xgoy" frameborder="0"></iframe></div><div style="display: none;"';
var regex = /name=\"([^"]+)\"/g;
// that is, look for name=" literally, match anything but a double quote
// and store it in a group
var match = regex.exec(string);
alert(match[1]); //ma7jq2s9xgoy

参见a JS fiddle here和 a demo on regex101.com here 。对于整个 HTML 文档，请考虑使用解析器 (jQuery? .attr() ?)