let data1 = [{"name": '小米'}, {"name": '小红'}, {"name": '小花'}, {"name": '小明'}]; let data2 = [ {"school": "清北", "type": "本科"}, {"school": "浙大", "type": "研究生"}, {"school": "复旦", "type": "大专"}, {"school": "剑桥", "type": "硕士"} ]; let result = data2.map(z=>data1.map(x=>({...x, ...z}))).flat() console.log('输出结果:',result); [ { "name": "小米", "school": "清北", "type": "本科" }, { "name": "小红", "school": "清北", "type": "本科" }, { "name": "小花", "school": "清北", "type": "本科" }, { "name": "小明", "school": "清北", "type": "本科" }, { "name": "小米", "school": "浙大", "type": "研究生" }, { "name": "小红", "school": "浙大", "type": "研究生" }, { "name": "小花", "school": "浙大", "type": "研究生" }, { "name": "小明", "school": "浙大", "type": "研究生" }, { "name": "小米", "school": "复旦", "type": "大专" }, { "name": "小红", "school": "复旦", "type": "大专" }, { "name": "小花", "school": "复旦", "type": "大专" }, { "name": "小明", "school": "复旦", "type": "大专" }, { "name": "小米", "school": "剑桥", "type": "硕士" }, { "name": "小红", "school": "剑桥", "type": "硕士" }, { "name": "小花", "school": "剑桥", "type": "硕士" }, { "name": "小明", "school": "剑桥", "type": "硕士" } ]