判斷x是否為一個(gè)質(zhì)數(shù)(素?cái)?shù)),若是則返回1,否則返回0。
A.struct BOOK *x=malloc(book); B.struct BOOK x={"C++ Programming",27.0}; C.struct BOOK *x=malloc(sizeof(struct BOOK)); D.struct BOOK *x=&book;
A.實(shí)數(shù)型 B.實(shí)數(shù)指針型 C.函數(shù)指針型 D.數(shù)組型
A.int * B.int ** C.int *[20] D.int(*)[20]
A.int a[5][]; B.int a[][5]; C.int a[][3]={{1,3,5},{2}}; D.int a[](10);
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