![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
若有定义:float x=1.5int a=1,b=3,c=2则正确的switch语句是______。
A.
switch (x) {case 1.0: printf('*/n') case 2.0: printf('**/n')}
B.
switch ( (int)x) {case 1: printf('*/n') case2: printf('**/n')}
C.
switch (a+b) {case 1:printf('*/n') case 2+1: printf('**/n')}
D.
switch (a+b)) {case 1: pfintf('*/n')} case c: printf('**/n'))}