function _reverse(number) { // 补全代码 let m = number < 0 ? -1 : 1 if(m == -1){ number = Math.abs(number) } let res = 0; while(number){ res = res * 10 + number % 10; if(res > Math.pow(2, 31) - 1 || res < Math.pow(-2, 31)) return 0; n...