使用JSON.parse(JSON.stringify(test))对对象、数组的深度拷贝

   var test = {a:"aa",b:"bb",c:[{e:"ee",d:"dd"},{m:"mm",n:"nn"}]};
    var test1 = test;
    test1.c[0].e = "change";
    console.log(test);
    console.log(test1);

    var test = {a:"aa",b:"bb",c:[{e:"ee",d:"dd"},{m:"mm",n:"nn"}]};

    var test1 = JSON.parse(JSON.stringify(test));
    test1.c[0].e = "change";
    console.log(test);
    console.log(test1);

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一个大坑啊 ，以后别踩了