数组中两数相加 等于一个值

1.暴力破解

var nums = [1, 3, 7, 6, 9, 11];
  var target = 9;
  var o = []
   for (let i = 0; i < nums.length; i++) {
    for (let j = 0; j < nums.length; j++) {
           let z = nums[i]
       let c = nums[j]
          if (z + c === target) {
            console.log(i,j)
        }
    }
}