// AI面试原题 之前紧张了 没有思路
const _shouldUpdate = (old, newValue) => {
            // 补全代码
             let flag = false
let str1 = old.split('.')
let str2 = newValue.split('.')
let max = Math.max(str1.length, str2.length)
for (let i = 0; i <= max; i++) {
    if (str1[i] < str2[i]) {
        flag = true
        break
    }

}
// console.log(str1, str2)
return flag
        }