手机344格式

search(e) {
                var value = e.replace(/\D/g, '').substring(0, 11);
                var valueLen = value.length;
                console.log(valueLen)
                if(valueLen == 3){
                    this.search = `${value.substr(0,3)}`;
                }else if (valueLen > 3 && valueLen < 8) {
                      this.search = `${value.substr(0,3)} ${value.substr(3)}`;
                } else if (valueLen >= 8) {
                      this.search = `${value.substr(0,3)} ${value.substr(3, 4)} ${value.substr(7)}`;
                }
            }