题解 | #总成绩排名#

const _rank = array => {
            // 补全代码
            array.sort((pre, next) => {
                let ary = ['chinese', 'math', 'english']
                let preSum = 0;
                let nextSun = 0;
                for(let key of ary){
                    preSum += pre[key];
                    nextSun+= next[key]
                }
                return nextSun - preSum
            })
            return array
        }