jquery中each循环

// 1 循环序列

var arr=[12,34,5667];
$.each(arr,function (i,j) {
    console.log(i,j)
});

var obj={"name":"alex","age":123}
$.each(obj,function (i,j) {
    console.log(i,j)
});

// 2 循环标签

$("ul li").each(function (i,j) {
    console.log(i,j);
    console.log($(this).html())
})