<script type="text/javascript">    function parentFun (callBack) {        console.log("主函数开始运行");        console.log("主函数运行结束");        console.log("-----------执行回调函数----------");        var param = {"name1":"张三","name2":"李四","name3":"王五","person":{"name4":"赵六"}};        callBack(param);        console.log("-----------回调函数执行结束----------");    }    function childFun1 () {        console.log("子函数开始运行");    }    function childFun2 (param) {        console.log("传入的参数是："+param.person.name4);    }    /*测试一*/    //parentFun(childFun1);    /*测试二*/    parentFun(childFun2);</script>