前台实现方法: 在<form></form>中添加<Label ID="dd" ></Label> <body onload="show()"> <Script Language="JScript"> function show() { var obj = document.all.tags("LABEL"); for (i=0;i<obj.length;i++) { document.all["dd"][i].innerHTML=i+1; } } </script> 后台实现方法: 在.aspx里添加<asp:Label id="Label1" Runat="server"></asp:Label> 在.cs里添加 private void InitializeComponent() { this.Repeater1.ItemDataBound += new System.Web.UI.WebControls.RepeaterItemEventHandler(this.Repeater1_ItemDataBound); this.Load += new System.EventHandler(this.Page_Load); } private void Repeater1_ItemDataBound(object source, System.Web.UI.WebControls.RepeaterItemEventArgs e) { if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) { ((Label)e.Item.FindControl("Label1")).Text = Convert.ToString(e.Item.ItemIndex + 1); } } 
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