function timeFunc(func) {
var start = new Date().getTime()
console.log('开始')
func()
var end = new Date().getTime()
console.log('结束')
console.log(end - start + ' ms');
}
function twoSum(nums = [3, 3, 4], target = 6) {
const resArr = []
for (let index = 0; index < nums.length; index++) {
let oth = nums.slice(index+1)
if (oth.length === 0) break
if(oth.indexOf(target - nums[index]) !== -1){
resArr.push(index,oth.indexOf(target - nums[index]+index))
}
console.log(resArr)
}
}
timeFunc(twoSum)