pre标签和code标签组合letdata=JSON.stringify({name:'tim',age:23,grade:3},null,2);
//结果是这样显示的,{"name":"tim","age":23,"grade":3}{data}
pre标签和code标签组合letdata=JSON.stringify({name:'tim',age:23,grade:3},null,2);
//结果是这样显示的,{"name":"tim","age":23,"grade":3}{data}