UC知道麻烦高手给我注释下这段代码 感谢感谢
来源：百度知道 编辑：UC知道 时间：2024/06/03 01:13:35
public class ADD_teacher {
public int add_teacher(String username,String password,String rname,String sex,String xueyuan,String email,String quanxian){
String sql="insert into Online_Examination (username,password,rname,sex,xueyuan,email,quanxian) values('"+username+"','"+password+"','"+rname+"','"+sex+"','"+xueyuan+"','"+email+"','"+quanxian+"')";
System.out.println(sql);
conn cn = new conn();
int i=cn.update(sql);
return i;
}
}
public int add_teacher(String username,String password,String rname,String sex,String xueyuan,String email,String quanxian){
String sql="insert into Online_Examination (username,password,rname,sex,xueyuan,email,quanxian) values('"+username+"','"+password+"','"+rname+"','"+sex+"','"+xueyuan+"','"+email+"','"+quanxian+"')";
System.out.println(sql);
conn cn = new conn();
int i=cn.update(sql);
return i;
}
}
//字面上理解为新增加老师,传入的字段都是String，不知道为什么不用实体类，这样看上去真麻烦哎~~
public int add_teacher(String username,String password,String rname,String sex,String xueyuan,String email,String quanxian){
String sql="insert into Online_Examination (username,password,rname,sex,xueyuan,email,quanxian) values('"+username+"','"+password+"','"+rname+"','"+sex+"','"+xueyuan+"','"+email+"','"+quanxian+"')";//插入的SQL语句
System.out.println(sql);
conn cn = new conn();//创建一个实例
int i=cn.update(sql);//调用相应的方法，返回值肯定是1或0
return i;
}