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假定有“structBOOK{chartitle[40]floatprice}BOOK*book=newBOOK”,则正确的语句为( )。
A.strcpy(book->title,”WangTao”)
B.strcpy(book.title,”WangTao”)
C.strcpy(*book.title,”WangTao”)
D.strcpy((*book)->title,”WangTao”)
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更多 “ 假定有“structBOOK{chartitle[40]floatprice}BOOK*book=newBOOK”,则正确的语句为( )。 A.strcpy(book->title,”WangTao”)B.strcpy(book.title,”WangTao”)C.strcpy(*book.title,”WangTao”)D.strcpy((*book)->title,”WangTao”) ” 相关考题
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单选题假定有“structBOOK{chartitle[40];floatprice;};BOOK*book;”定义,则不正确的语句为()。A
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单选题假定有“structBOOK{chartitle[40];floatprice;};BOOK*book=newBOOK;”,则正确的语句为()。A
strcpy(book-title,”WangTao”)B
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单选题查询book表中所有书名中包含“计算机”的书籍情况,可用()语句。A
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多选题现有表book,主键bookid设为标识列。若执行语句:select*intobook2frombook,以下说法正确的是()。A若数据库中已存在表book2,则会提示错误。B若数据库中已存在表book2,则语句执行成功,并且表book2中的bookid自动设为标识。C若数据库中不存在表book2,则语句执行成功,并且表book2中的bookid自动设为主键。D若数据库中不存在表book2,则语句执行成功,并且表book2中的bookid自动设为标识。
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考题
单选题假定有“struct BOOK{char title[40]; float price;}; struct BOOK book;”,则不正确的语句为()。A
struct BOOK *x=malloc(book);B
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单选题假定有“struct BOOK{char title[40]; float price;} book;”,则正确的语句为()。A
struct BOOK x= book;B
struct BOOK *x=book;C
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struct BOOK *x=BOOK;
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单选题要查询book表中所有书名中以“计算机”开头的书籍的价格,可用()语句。A
SELECT price FROM book WHERE book_name=‘计算机*’B
SELECT price FROM book WHERE book_nameLIKE‘计算机*’C
SELECT price FROM book WHERE book_name=‘计算机%’D
SELECT price FROM book WHERE book_nameLIKE‘计算机%’
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