JS中遍歷對象的所有屬性，並取出對應的屬性值

function haitao() {
    this.name = "xuhaitao";
    this.age = 36;
    this.friend = [{ name: "hunkxu", age: 36 }, { name: "xiaoxu", age: 63 }];
}
let aaa = new haitao();
for (var m in aaa) {
    console.log(m, aaa[m]);
}

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打印結果：

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