一、去外面实习；
二、毕业后再说。

谢谢

wo kao 就这么简单
 //把TextBox的Name设成你数据库字段的Name,TextBox的Tag就放字段的类型 int、char
 //然后在按钮事件中添加

  StringBuilder sb = new StringBuilder();
            sb.Append("Select * from 表名 Where 1=1");
            foreach (var c in this.Controls)
            {
                if (c is TextBox)
                {
                    var txt = c as TextBox;
                    if (txt != null && txt.Text.Trim() != "")
                    {
                        bool isChar = (txt.Tag.ToString() == "char");
                        sb.Append(" And " + txt.Name + ""+(isChar?" Like ":"=")+""+(isChar?"'%":"")+"" + txt.Text.Trim() + ""+(isChar?"%'":"")+"");
                    }
                }
            }
            
            //或者全部为空的话就不查询 哈哈
            if (sb.ToString().IndexOf("And") == -1) return;

            //这里执行sql语句就行了   PS：手写判断会死人的 哈哈