js正则匹配以$开头和结尾的内容，并改变颜色

 

let res = "$你好你好$"
res = res.replace(/\$(?<=\$).*?(?=\$)\$/g,
          `<span onclick="((params)=>{
              console.log(params)
          })('$&')" style="color: dodgerblue;padding: 0 5px;">$&</span>`)