1、提取大括号里面的内容

  var reg = /[^\{}]*\{(.*)\}[^\}]*/;
    var str = "8324{aab}";
    console.log("大括号的内容为：",str.replace(reg,'$1'));//输出aab

2、提取字符串里的手机号码

  checkPhone(text) {
    const phoneList=text.match(/((((13[0-9])|(15[^4])|(18[0,1,2,3,5-9])|(17[0-8])|(16[0-9])|(147))\d{8})|((\d3,4|\d{3,4}-|\s)?\d{7,14}))?/g);
    const phone =phoneList.filter(item=>{
     return item!=''
    })
    return phone;
  },

3、提取以字母开头后面全部是数组的字符串

    var a = '礼品6款入c02806015123';
    var pattern = /([A-Za-z]{1}[0-9]*)/g; //以字母开头，后面全部都是数字的字符串
    const result = pattern.exec(a)[0]
    console.log("提取的结果为：", result)//输出：c02806015123