作业3 3.1多项选择题(从下列各题四个备选答案中选出1至4个正确答案,将 其代号(A,B,C,D)写在题干前面的括号内)

#include #includestime. h> void main( int i right=0, error int x, y, op, result, input srand(time(NULL))

#include void maino Int x, y, 2, printf(\请输入三个整数xy,z:\) scanf(\%d%d%d\, &x, &y, &z)

#include #include void maino float x, y, z, q, area; printf(\请输入三角形的三条边:\)

#include #define NULL void proerr(Ffile*fp)/*错误测试与处理的通用函数*

#include void maino FILE'fpl, fp2; fpl= fopen(\e: Aname txt\,\r\),/*只读打开文件 name. txt fp2=fopen(\e: name. bak\, \W\); while( feof(fpl)

第十章文件 一、C文件概述 二、文件类型指针 三、文件的打开与关闭 四、文件的读写 五、文件的定位 六、出错的检测

include include struct student/*定义结构体类型 student及数且s* char number 6 char name[201

TURBO HELP UTILITY This file explains how to use THELP. COM. THELP isa memory-resident utility that provides online help for Turbo Pascal and Turbo C. If you are using Turbo Debugger, for example, you can load THELP, then run the debugger and get