看代码: let obj1 = { name: '张三', age: , sex: '男' } let obj2 = obj1 console.log('obj2:', obj2) obj2.age = console.log('obj2:', obj2) console.log('obj1:', obj1)输出:解决:采用深拷贝的方法 :let obj2 = JSON.parse(JSON.stringify(obj1))