Asp.Net_后台代码访问前台html标签

//单击按钮后批量改变li元素的内联文本值及样式  
    for (int i = 1; i <= 8; i++)  
    {  
        HtmlGenericControl li = this.FindControl("li" + i) as HtmlGenericControl;  
        li.InnerHtml = "新值" + i.ToString();  
        li.Attributes.CssStyle.Value = "color:red";  
    }  

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