Ext.FormPanel提交和Ext.Ajax.request异步提交函数的区别

(1)Ext.FormPanel
f.getForm().submit({
url:"......",
params:{XX:xx.....}
success:function(c,v,e){//e:触发事件
varjson=Ext.decode(v.response.responseText);
},
failure:function(c,v,e){}
})

(2)Ext.Ajax.request
Ext.Ajax.request({
url:"....",
params:{XX:xx....},
success:function(v,c){
varjson=Ext.decode(v.responseText);
},
failure:function(v,c){}
})