es6在微信小程序多参引用

 add(...values) {
    let sum = 0;
    for (var val of values) {
      sum += val*1;
    }
    return sum;
  },

调用的时候add(A,B)跟我说not define

add(...args) {
let sum = 0;
for (const val of args) {
sum += val*1;
}
return sum;
},