const datas = {
3: [0, 0],
4: [874, 1351],
5: [840, 1369],
6: [828, 1383],
7: [821, 1388],
8: [812, 1384],
9: [806, 1384],
10: [801, 1382],
11: [805, 1386],
12: [795, 1394]
};
const valuesList = Object.values(datas);
const keysList = Object.keys(datas);
var arr1 = valuesList; // 定义数组
var arr2 = keysList; // 定义数组
var arr3 = []; // 定义数组
var arr4 = [];
arr1.map((item, index) => {
arr3.push({ x: item[0], y: item[1] });
});
arr2.map((item, index) => {
arr4.push({ index: item });
});
arr4.map((item, index) => {
arr3[index].index = item.index;
});