@{ var sname = ""; var snum = ""; var sid = ""; if (!IsPost) { if (!Request.QueryString["ID"].IsEmpty() && Request.QueryString["ID"].IsInt()) { sid = Request.QueryString["ID"]; var db = Database.Open("startersite"); var dbCommand = "SELECT * FROM students WHERE sid = @0"; var row = db.QuerySingle(dbCommand, sid); if (row != null) { sname = row.sname; snum = row.snum; } else { Validation.AddFormError("没有找到这个ID的学生."); } } else { Validation.AddFormError("没有找到这个ID的学生."); } } //两个条件：第一，这是一个POST请求，第二，这是由一个叫做buttonDelete的按钮提交的请求 if (IsPost && !Request["buttonDelete"].IsEmpty()) { sid = Request.Form["sid"]; var db = Database.Open("startersite"); var deleteCommand = "DELETE FROM students WHERE sid = @0"; db.Execute(deleteCommand, sid); Response.Redirect("~/students"); }}<!DOCTYPE html><html lang="en"><head> <title>删除学生信息</title></head><body> <h1>删除学生信息</h1> @Html.ValidationSummary() <p><a href="~/students">返回学生列表</a></p> <form method="post"> <fieldset> <legend>学生信息</legend> <p> <span>学生姓名:</span> <span>@sname</span> </p> <p> <span>学号:</span> <span>@snum</span> </p> <input type="hidden" name="sid" value="@sid" /> <p><input type="submit" name="buttonDelete" value="确认删除" /></p> </fieldset> </form></body></html>
先把你的代码贴正确了。提问要用电脑提问，而不是用手机。还有先采纳之前的回答再问新的问题。