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JS 更改选中文本样式

2023-10-10T08:53:41.000Z2023-10-10T08:53:41.000Z691 min

方法

$('p').mouseup(function(){
    var s=window.getSelection();
    s=s.toString();
    s=s.replace(/([\'\"\<\>\[\]\/\?\.\*\+\^\$\!])/g,'\\$1');
    var reg=new RegExp(s);
    console.log(reg);
    var h=$(this).html();
    if(reg.test(h)){
        var reg1=new RegExp('^(.*?)('+s+')(.*?)$');
        $(this).html(h.replace(reg1,'$1<em>$2</em>$3'));
        console.log(reg1);
    }
});