(function(){
        var print={
            lock:true,
            log:function(param){
                if(this.lock){
                    var element=document.createElement("div");
                    element.style.background=‘green‘
                    element.style.fontSize=‘20px‘
                    switch (typeof param){
                        case "string" :element.innerHTML=param;break;
                        case "object":element.innerHTML=JSON.stringify(param);break;
                    }
                    document.body.appendChild(element)
                }
            }
        }
        window.console=print;
    })(window)

    console.log("我哦我我我我我我我哦我")
    console.log({name:"张三",age:15})