小程序正则替换

  • 使用正则替换字符串

原始数据:

2020-8-3 18:18:23

str.replace(new RegExp('-','g'),'.');

或

str.replace(/-/g,'.');

替换结果:

2020.8.3 18:18:23

  • 使用正则替换HTML中的图片 

原始数据:

 <p><img src="https://www.demo.com/image/20210702/1625193028451591.jpeg" title="1625193028451591.jpeg" alt="1625193028451591.jpeg" style="width: 640px; height: 427px;"/></p><p>hello world</p>

let reg = new RegExp("<img [^>]*src=['\"]([^'\"]+)[^>]*>", "g");
html = html.replace(reg, function (match, capture) {
    console.log(match)
    console.log(capture)
    return '<img src="'+capture+'" style="width:100%;height:auto;" />'
});

或者 

html = html.replace(/<img [^>]*src=['"]([^'"]+)[^>]*>/gi, function(match, capture){
    console.log(match)
    console.log(capture)
    return '<img src="'+capture+'" style="width:100%;height:auto;" />'
});

替换结果:

 <p><img src="https://www.demo.com/image/20210702/1625193028451591.jpeg" style="width:100%;height:auto;" /></p><p>hello world</p> 

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转载自blog.csdn.net/watson2017/article/details/118407962