2025年C语言考试热点问题试题及答案

2025年C语言考试热点问题试题及答案姓名：____________________

一、单项选择题（每题2分，共10题）

1.以下哪个选项是C语言中的基本数据类型？

A.float

B.char

C.int

D.alloftheabove

2.在C语言中，以下哪个函数用于将字符串复制到另一个字符串中？

A.strcpy()

B.strcat()

C.strlen()

D.strcmp()

3.以下哪个关键字用于定义一个整型变量？

A.int

B.float

C.char

D.void

4.在C语言中，以下哪个运算符用于取模运算？

A.%

B./

C.*

D.+

5.以下哪个关键字用于定义一个结构体？

A.struct

B.union

C.enum

D.typedef

6.在C语言中，以下哪个函数用于输出一个整数？

A.printf()

B.scanf()

C.getchar()

D.putchar()

7.以下哪个关键字用于定义一个函数？

A.func

B.return

C.void

D.int

8.在C语言中，以下哪个运算符用于逻辑与运算？

A.&&

B.||

C.!

D.==

9.以下哪个关键字用于定义一个数组？

A.array

B.[]

C.struct

D.union

10.在C语言中，以下哪个函数用于动态分配内存？

A.malloc()

B.free()

C.calloc()

D.realloc()

二、填空题（每题2分，共5题）

1.C语言中，定义一个整型变量的语法是：____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________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