前端javascript练习题Ajax封装
前端javascript练习题Ajax封装ajax的基本封装 ----必须掌握function ajax(url,fn){ if(window.XMLHttpRequest){ var xhr = new XMLHttpRequest(); }else{ var xhr = new ActiveXObject("Microsoft.XMLHTTP"); } xhr.open("get",url,true); xhr.send(); xhr.onreadystatechange = function(){ if(xhr.readyState == 4){ if(xhr.status == 200){ var data = xhr.responseText; fn(data); } } }} ajax的完整封装function ajax(obj){ //obj -> type url data success var str = ""; for(var key in obj.data){ str += key+"="+obj.data[key]+"&"; } //str = ...







