Question

C语言判断？

设变量已正确定义，以下是合法的switch语句吗？谢谢
switch(choice){
case choice == 1: price = 3.0; break;
case choice == 2: price = 2.5; break;
case choice == 3: price = 4.0; break;
case choice == 4: price = 3.5; break;
default: price = 0.0; break;
}

Answer 1

不正确，case 后面紧跟choice 的变量内容，case 1:price=30;break;

Answer 2

switch(choice){
case 1: price = 3.0; break;
case 2: price = 2.5; break;
case 3: price = 4.0; break;
case 4: price = 3.5; break;
default: price = 0.0; break;
}
应该是这样，不用加判断语句

追问

那我这个是对的吗？判断题啊，我不知道对不对

追答

应该的和你的不一样，当然就不对了