const arr = [ { x: 0, y: 0, w: 4, h: 6, i: "ztqk", static: false, cmp: "Ztqk" }, { x: 0, y: 1, w: 4, h: 6, i: "xmtzzcqk", static: false, cmp: "Xmtzzcqk" }, { x: 0, y: 1, w: 4, h: 6, i: "xmtzzcqkAdcd", static: false, cmp: "XmtzzcqkAdcd" }, { x: 0, y: 2, w: 4, h: 5, i: "xmtzwcqk", static: false, cmp: "Xmtzwcqk" }, { x: 0, y: 2, w: 4, h: 5, i: "xmtzwcqkAdcd", static: false, cmp: "XmtzwcqkAdcd" }, { x: 4, y: 0, w: 10, h: 12, i: "piemap", static: false, cmp: "Map" }, { x: 4, y: 2, w: 10, h: 5, i: "zlcsssqk", static: false, cmp: "Zlcsssqk" }, { x: 14, y: 0, w: 4, h: 5, i: "xmjdfb", static: false, cmp: "Xmjdfb" }, { x: 14, y: 0, w: 4, h: 5, i: "xmjdfbAdcd", static: false, cmp: "XmjdfbAdcd" }, { x: 14, y: 1, w: 4, h: 7, i: "xxhjg", static: false, cmp: "Xxhjg" }, { x: 14, y: 1, w: 4, h: 7, i: "xxhjgTuban", static: false, cmp: "XxhjgTuban" }, { x: 14, y: 2, w: 4, h: 5, i: "zlmjwcqk", static: false, cmp: "Zlmjwcqk" }, { x: 14, y: 2, w: 4, h: 5, i: "zlmjwcqkAdcd", static: false, cmp: "ZlmjwcqkAdcd" },]const arr1 = [ { x: 0, y: 0, w: 4, h: 6, i: "ztqk", static: false, cmp: "Ztqk" }, { x: 0, y: 1, w: 4, h: 6, i: "xmtzzcqk", static: false, cmp: "Xmtzzcqk" }, { x: 0, y: 2, w: 4, h: 5, i: "xmtzwcqk", static: false, cmp: "Xmtzwcqk" }, { x: 4, y: 0, w: 10, h: 12, i: "piemap", static: false, cmp: "Map" }, { x: 4, y: 2, w: 10, h: 5, i: "zlcsssqk", static: false, cmp: "Zlcsssqk" }, { x: 14, y: 0, w: 4, h: 5, i: "xmjdfb", static: false, cmp: "Xmjdfb" }, { x: 14, y: 1, w: 4, h: 7, i: "xxhjg", static: false, cmp: "Xxhjg" }, { x: 14, y: 2, w: 4, h: 5, i: "zlmjwcqk", static: false, cmp: "Zlmjwcqk"},]let obj = {}for (let key of arr1) { obj[`${key.i}`] = '123'}for (let key of arr) { if (obj[key.i] !== '123') { console.log(key) }}要害剖析：
1.arr1 ∈ arr
2.遍历arr1，将每项的id设置为对象的key
3.遍历arr，输出没有值的项