switch (tag) {
case 0:
{
label.text = @"This a switch test";
break;
}
case 1:
case 2:
case 3:
case 4:
{
label.text = @"1,2,3,4";
break;
}
case 5:
{
label.text = @"5";
break;
}
case 6:
{
label.text = @"6";
break;
}
case 7:
{
label.text = @"7";
break;
}
case 8:
{
label.text = @"8";
break;
}
default:
break;
}
这样，
条件是1，2，3，4的都会执行
label.text = @"1,2,3,4";
这条语句
