Question

谁帮我看看下面这段代码，运行后提示 int xwid = Convert.ToInt32(Request.QueryString["xwid"]); 输入

字符串格式不正确。可在另外一个网站运行时没出现这种错误啊！
public partial class _gzgk : System.Web.UI.Page
{
public string flashadd;
protected void Page_Load(object sender, EventArgs e)
{
int xwid = Convert.ToInt32(Request.QueryString["xwid"]);
string sql0 = "select * from xwkd where xwid=" + xwid;
DataRow dr = Class1.dr(sql0);
flashadd = dr["remarks"].ToString();
}
}

Answer 1

可以检查 传递的参数是否正确
是否是数字类型

Answer 2

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