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ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert'Weclome!!!');</script>");
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Page.ClientScript.RegisterStartupScript(Page.GetType(), "message", "<script language='javascript' defer>alert('Ìí¼Óʧ°Ü£¬ÇëÁªÏµ¼¼ÊõÔ±£¡');</script>");
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ScriptManager.RegisterStartupScript(UpdatePanel1, this.GetType(), "", "alert('Weclome!!!');", true);
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bool b= tmaintainmanager.PMaintainUpdate(tmaintain);
            if (b)
            {
                ScriptManager.RegisterClientScriptBlock(btnsave, this.GetType(), "", "alert('Ìá½»³É¹¦!');",true);
            }
            else
            {
                ScriptManager.RegisterClientScriptBlock(btnsave, this.GetType(), "", "alert('Ìύʧ°Ü£¬ÇëÁªÏµ¹ÜÀíÔ±£¡');", true);
            }