用scanf和printf函数时要用以下哪个语句导入头文件()
A: #include
B: #include
C: #define
D: #include stdio.h
A: #include
B: #include
C: #define
D: #include stdio.h
举一反三
- 用scanf和printf函数时要用以下哪个语句导入头文件? A: include<std.h> B: include<stdio.h> C: define<stdio.h> D: include stdio.h
- 用scanf和printf函数时要用以下哪个语句导入头文件? A: B: include<std.h> C: D: include<stdio.h> E: F: define<stdio.h> G: H: include stdio.h
- 使用scanf()函数时,在源程序开头必须写预处理命令( ) A: include <stdio.h> B: include <stdio > C: include <stdio.h> D: include <scanf.h>
- 使用scanf函数需要在头文件中添加___. A: include <stdio.h> B: include <ctype.h> C: include <float.h> D: include <iomanip.h>
- 使用库函数前包含头文件stdio。h的正确命令是( )。 A: @include<stdio.h> B: #include<stdio.h> C: #include stdio.h D: #include”stdio.h”