Update README.md

src/com/controller/deptadmin/DeptAddStuPunchServlet.java

@@ -44,7 +44,7 @@ public class DeptAddStuPunchServlet extends HttpServlet {  //定义一个继承
             sql = "insert into stupunchin values(?, ?, ?, ?, ?, ?, ?, ?, ?)";
             Object[] objects1 = {sno, sispunch, spunchdate, spunchtime, sishot, siscough, sisseem, sisdiagnose, sstatus};
             //SQL插入语句：向stupunchin表插入包含9个字段的新记录
-            //参数绑定：将表单参数按顺序填入占位符。
+            //参数绑定：将表单参数按顺序填入占位符
 
             int num = DeptAdminDao.executeUpdate(sql, objects1);//执行更新：调用DAO方法executeUpdate执行插入，返回受影响的行数。