jQuery测试用品

var testDiv= $("#testDiv");
var testInput= $("#testInput");

testDiv.lookHtml();
testInput.lookValue();
$.lookCustomize("Hello Word");

$.fn.extend({
   lookHtml:function () {
        alert("html:" + $(this).html());
        throw Error;
    },
    lookValue:function () {
        var key = $(this).attr("name");
        var value = $(this).val();
        alert(key + ":" + value);
        throw Error;
    }
});
$.extend({
   lookCustomize:function(value) {
       alert("Your enter:" + value);
       throw Error;
   }
});