使用随机函数需要包含的头文件有( )。
A:
B: include<stdlib.h>
C:
D: include<time.h>
E:
F: include <conio.h>
G: A和B
A:
B: include<stdlib.h>
C:
D: include<time.h>
E:
F: include <conio.h>
G: A和B
举一反三
- 使用scanf()函数时,在源程序开头必须写预处理命令( ) A: B: include <stdio.h> C: D: include <stdio > E: include <stdio.h> F: G: include <scanf.h>
- 一个C语言源程序中如果调用了函数fabs,那必须有编译预处理命令( )。 A: B: include <stdio.h> C: D: include <math.h> E: F: include <ctype.h> G: H: include <stdlib.h>
- 在当前页面中包含a.htm的正确语句是( ) A: <%@ include=”a.htm”%> B: <jsp:include file=”a.htm”/> C: <%@ include page=”a.htm”%> D: <%@ include file=”a.htm”%>
- 在JSP中可动态导入其他页面的标签是( ) A: <%include/></textarea> B: <%@include%> C: <jsp:importPage/> D: <jsp:include/>
- 用户定义的头文件用什么包含? A: include<> B: include( ) C: inlcude D: include””