{a:1,b:2,c:3}转换成[{a:1},{b:2},{c:3}]

var arr = []for (let i in this.obj) {    let o = {};    o[i] = obj[i]; //即增加了key值也赋了value值 o[i] 相当于o.name 此时i为变量    arr.push(o)}