JavaScript之reduce()的用法答:cur)=>{pre[cur.id]=cur;returnpre;},{})console.log('数组转对象:',obj1);高级用法1.多维的叠加执行操作例子:各科成绩占比不一样,求结果constresult=[{subject:'math',score:99},{subject:'chinese',score:95},{subject:'english',score:80},];constdis={math:0.5,chinese:0.2,...