以下的switch语句使用格式正确的是?(注意分号)
A.
switch(P3) { case 0xe0: KeyValue = 0: break; case 0xd0: KeyValue = 1: break; case 0xb0: KeyValue = 2: break; case 0x70: KeyValue = 3: break; }
B.
switch(P3) { case 0xe0; KeyValue = 0 ; break; case 0xd0; KeyValue = 1 ; break; case 0xb0; KeyValue = 2 ; break; case 0x70; KeyValue = 3 ; break; }
C.
switch(P3) ; { case 0xe0: KeyValue = 0;break; case 0xd0: KeyValue = 1 ; break; case 0xb0: KeyValue = 2 ; break; case 0x70: KeyValue = 3 ; break; }
D.
switch(P3) { case 0xe0: KeyValue = 0;break; case 0xd0: KeyValue = 1 ; break; case 0xb0: KeyValue = 2 ; break; case 0x70: KeyValue = 3 ; break; }