我也有“对ERPSGame（）的未定义引用”错误以及“Id返回1退出状态”。我说错了吗？我正在使用Orwell Dev C ++。 什么似乎是问题？是我的编译器吗？ 看看整个代码：
/* GameBox BETA v0.2 */
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
void ERPS();
void Menu();
void BJack();
void Log();
int ERPSGame();
void ERPSInstruct();
int main() {
char Choice;
system("cls");
printf("\t\t Welcome to Mark and Leroy's GameBox BETA v0.2 \n\n\n");
printf("--------------------------------------------------------------------------------\n");
printf("\t _________________________________________________________\n");
printf("\t ||_____________________________________________________|| \n");
printf("\t || \t\t|| \n");
printf("\t || \t\t|| \n");
printf("\t || \t\t|| \n");
printf("\t ||\t Please press 'A' to continue to the menu\t||\n");
printf("\t ||\t \t||\n");
printf("\t ||\t Otherwise, press 'F' to exit the program\t||\n");
printf("\t ||_____________________________________________________|| \n");
printf("\t ||_____________________________________________________||\n");
printf("--------------------------------------------------------------------------------\n\n");
/* Drawing Starts Here */
printf("\t\t ========================================\n");
printf("\t\t || || \n");
printf("\t\t || ||=============== || \n");
printf("\t\t || || || \n");
printf("\t\t || || ======= || \n");
printf("\t\t || || Gamebox || || \n");
printf("\t\t || || BETA v0.2 || || \n");
printf("\t\t || ||==============|| || \n");
printf("\t\t || || \n");
printf("\t\t || ||==== ||====|| == == || \n");
printf("\t\t || || || || || == == || \n");
printf("\t\t || ||===|| || || == || \n");
printf("\t\t || ||___|| ||====|| == == || \n");
printf("\t\t || == == || \n");
printf("\t\t || Artwork by: Mark Sanchez || \n");
printf("\t\t ========================================\n");
/* Drawing Ends Here */
scanf("%c", &Choice);
switch (Choice) {
case'A':case'a':{
Menu();
break;
}
case'F':case'f':{
exit(0);
}
default: {
main();
}
}
return 0;
}
void Menu() {
char Choice1;
system("cls");
printf("\t\t Welcome to Mark and Leroy's GameBox BETA v0.2 \n\n\n");
printf("--------------------------------------------------------------------------------\n\n");
printf("\t\t Press 'R' to play the Enhanced Rock-Paper-Scissors game\n\n\n");
printf("\t\t Press 'B'to play Blackjack\n\n\n");
printf("\t\t Press 'C' to view the changelog\n\n\n");
printf("--------------------------------------------------------------------------------\n\n");
scanf("%c", &Choice1);
switch(Choice1) {
case'R':case'r': {
ERPS();
break;
}
case'B':case'b': {
BJack();
break;
}
case'C':case'c': {
Log();
break;
}
default: {
Menu();
}
}
}
void ERPS() {
system("cls");
char Instruct1;
char Instruct2;
/* Menu of ERPS */
printf("\t\t\t Welcome to ENHANCED Rock Paper Scissors\n\n\n");
printf("\t\t\t Press A to start the game\n\n");
printf("\t\t\t Press S to view the instructions\n\n");
printf("\t\t\t Press 'P' to return to the main menu\n");
scanf("%c", &Instruct1);
scanf("%c", &Instruct2);
switch(Instruct2) {
case'A':case'a': {
ERPSGame();
break;
}
case'S':case's': {
ERPSInstruct();
break;
}
case'P':case'p': {
Menu();
break;
}
default:{
ERPS();
}
}
}
int rand_i(int n)
{
int rand_max = RAND_MAX - (RAND_MAX % n);
int ret;
while ((ret = rand()) >= rand_max);
return ret/(rand_max / n);
}
int weighed_rand(int *tbl, int len)
{
int i, sum, r;
for (i = 0, sum = 0; i < len; sum += tbl[i++]);
if (!sum) return rand_i(len);
r = rand_i(sum) + 1;
for (i = 0; i < len && (r -= tbl[i]) > 0; i++);
return i;
}
int ERPSGame(int argc, const char *argv[]) /* THIS IS THE ERPSGame */
{
char umove[10], cmove[10], line[255];
int user, comp;
int tbl[]={0,0,0};
int tbllen=3;
printf("Hello, Welcome to rock-paper-scissors\nBy The Elite Noob\n");
mainloop:
while(1)
{ // infinite loop :)
printf("\n\nPlease type in 1 for Rock, 2 For Paper, 3 for Scissors, 4 to quit\n");
srand(time(NULL));
comp = (weighed_rand(tbl, tbllen) + 1) % 3;
fgets(line, sizeof(line), stdin);
while(sscanf(line, "%d", &user) != 1) //1 match of defined specifier on input line
{
printf("You have not entered an integer.\n");
fgets(line, sizeof(line), stdin);
}
if( (user > 4) || (user < 1) )
{
printf("Please enter a valid number!\n");
continue;
}
switch (comp)
{
case 1 :
strcpy(cmove, "Rock");
break;
case 2 :
strcpy(cmove, "Paper");
break;
case 3 :
strcpy(cmove, "Scissors");
break;
default :
printf("Computer Error, set comp=1\n");
comp=1;
strcpy(cmove, "Rock");
break;
}
switch (user)
{
case 1 :
strcpy(umove, "Rock");
break;
case 2 :
strcpy(umove, "Paper");
break;
case 3 :
strcpy(umove, "Scissors");
break;
case 4 :
printf("Goodbye! Thanks for playing!\n");
return 0;
default :
printf("Error, user number not between 1-4 exiting...");
goto mainloop;
}
if( (user+1)%3 == comp )
{
printf("Comp Played: %s\nYou Played: %s\nSorry, You Lost!\n", cmove, umove);
}
else if(comp == user)
{
printf("Comp Played: %s\nYou Played: %s\nYou Tied :p\n", cmove, umove);
}
else
{
printf("Comp Played: %s\nYou Played: %s\nYay, You Won!\n", cmove, umove);
}
tbl[user-1]++;
}
}
void ERPSInstruct() {
system("cls");
char Instruct3;
printf("\t\t\t Instructions of the Game \n\n");
printf("\t\t\t There will be 5 choices to choose from\n");
printf("\t\t\t 1. Rock\n");
printf("\t\t\t 2. Paper\n");
printf("\t\t\t 3. Scissors\n");
printf("\t\t\t 4. Lizard\n");
printf("\t\t\t 5. Spock\n\n\n\n");
printf("\t\t This is the mechanism of the choices: \n\n");
printf("\t\t Scissor cuts paper. \n\n");
printf("\t\t Paper covers rock. \n\n");
printf("\t\t Rock crushes lizard. \n\n");
printf("\t\t Lizard poisons spock. \n\n");
printf("\t\t Spock smashes scissors. \n\n");
printf("\t\t Scissors decapitate lizard. \n\n");
printf("\t\t Lizard eats paper. \n\n");
printf("\t\t Paper disproves spock. \n\n");
printf("\t\t Spock vaporizes rock. \n\n");
printf("\t\t Rock crushes scissors. \n\n");
printf("\t\t\t Press 'P' to return to the menu\n");
scanf("%c", &Instruct3);
switch(Instruct3) {
case'P':case'p': {
Menu();
break;
}
default: {
ERPSInstruct();
}
}
}
void BJack() {
system("cls");
char Instruct2;
printf("BLACKJack \n\n\n");
printf("\t\t\t Press 'P' to return to the menu\n");
scanf("%c", &Instruct2);
switch(Instruct2) {
case'P':case'p': {
Menu();
break;
}
default: {
BJack();
break;
}
}
getch();
}
void Log() {
system("cls");
char Instruct3;
printf("CHANGELOG: \n\n\n");
printf(" 0.1 -- Fixed a bug wherein the program forces\n to do 'default' upon choosing a game\n\n\n");
printf("-----------------------------------------------\n\n");
printf(" 0.2 -- Fixed display in CMD: Added a few dividers \nas well as correcting a few grammatical mistakes\n");
printf(" Added awesome graphics \n\n\n");
printf("-----------------------------------------------\n\n");
printf("\t\t\t Press 'P' to return to the menu\n");
scanf("%c", &Instruct3);
switch(Instruct3) {
case'P':case'p': {
Menu();
break;
}
default: {
Log();
break;
}
}
}
这是我宣布ERPSGame的方式吗？我用过int。
答案 0 :(得分：3)
函数声明与函数定义不匹配。
声明：
int ERPSGame();
定义
int ERPSGame(int argc, const char *argv[])
在Dev-C ++中，在工具下 - ＆gt;编译器选项，将“-Wall”放在“...命令调用编译器时”框中。它可以帮助您获得警告并进行有效的编码并节省您的时间。
答案 1 :(得分：0)
当你接受instruct1然后在交换机中使用instruct2时......
scanf("%c", &Instruct1);
scanf("%c", &Instruct2);
switch(Instruct2) {
case'A':case'a': {
ERPSGame();
鉴于用户响应在instruct1中，这可能会给你一个奇怪的值。潜在地