方法一:for...in 循环遍历对象的所有属性,并逐个输出它们的值;每次执行时,都会将一个属性名赋值给所定义的变量 let obj = { name: 'zs', age: 18, gender: '男', address: '北京' } //输出对象内的属性名 |
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