出错了,为什么?Console.WriteLine("请输入成绩");int cj = Convert.ToInt32(Console.ReadLine());if (cj>=90){Console.WriteLine("等级为A");}if (90 > cj >= 80){Console.WriteLine("等级为B");}if (80 > cj >= 70){Console.WriteLine("等级为C");
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 22:10:43
![出错了,为什么?Console.WriteLine(](/uploads/image/z/13191115-67-5.jpg?t=%E5%87%BA%E9%94%99%E4%BA%86%2C%E4%B8%BA%E4%BB%80%E4%B9%88%3FConsole.WriteLine%28%22%E8%AF%B7%E8%BE%93%E5%85%A5%E6%88%90%E7%BB%A9%22%29%3Bint+cj+%3D+Convert.ToInt32%28Console.ReadLine%28%29%29%3Bif+%28cj%3E%3D90%29%7BConsole.WriteLine%28%22%E7%AD%89%E7%BA%A7%E4%B8%BAA%22%29%3B%7Dif+%2890+%3E+cj+%3E%3D+80%29%7BConsole.WriteLine%28%22%E7%AD%89%E7%BA%A7%E4%B8%BAB%22%29%3B%7Dif+%2880+%3E+cj+%3E%3D+70%29%7BConsole.WriteLine%28%22%E7%AD%89%E7%BA%A7%E4%B8%BAC%22%29%3B)
出错了,为什么?Console.WriteLine("请输入成绩");int cj = Convert.ToInt32(Console.ReadLine());if (cj>=90){Console.WriteLine("等级为A");}if (90 > cj >= 80){Console.WriteLine("等级为B");}if (80 > cj >= 70){Console.WriteLine("等级为C");
出错了,为什么?
Console.WriteLine("请输入成绩");
int cj = Convert.ToInt32(Console.ReadLine());
if (cj>=90)
{
Console.WriteLine("等级为A");
}
if (90 > cj >= 80)
{
Console.WriteLine("等级为B");
}
if (80 > cj >= 70)
{
Console.WriteLine("等级为C");
}
if (70 > cj >= 60)
{
Console.WriteLine("等级为D");
}
if (cj < 60)
{
Console.WriteLine("等级为E");
}
Console.ReadKey();
出错了,为什么?Console.WriteLine("请输入成绩");int cj = Convert.ToInt32(Console.ReadLine());if (cj>=90){Console.WriteLine("等级为A");}if (90 > cj >= 80){Console.WriteLine("等级为B");}if (80 > cj >= 70){Console.WriteLine("等级为C");
if (90 > cj >= 80)
编程里面没有这种连比较的数学符号 的.
要拆开写.
if (90 > cj && cj>= 80) 用&&来连接 .并且的意思.