var的使用

ListEnterPRise epList = ViewBag.epList; foreach (var item in epList){ //todo ... } 当ListEnterprise epList = ViewBag.epList; 变为ListEnterpriseInfo epList = ViewBag.epList; 时, 下面的foreach语句根本不用改变,会加快编码速度.也就是可以简单的

List epList = ViewBag.epList;

foreach (var item in epList){

　　//todo ...

}

当 List epList = ViewBag.epList; 变为 List epList = ViewBag.epList; 时,

下面的foreach语句根本不用改变,会加快编码速度.也就是可以简单的理解为 var 是类型的变量(本质是类型推断).