function sum(...arg){ if(arg.length==0){ return 0 } let arr = [] arr = arr.concat(arg) return function fn(...arg){ if(arg.length==0){ return arr.reduce((a,b)=>a+b) } arr = arr.concat(arg) return fn } }
function sum(...arg){ if(arg.length==0){ return 0 } let arr = [] arr = arr.concat(arg) return function fn(...arg){ if(arg.length==0){ return arr.reduce((a,b)=>a+b) } arr = arr.concat(arg) return fn } }名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
