Question

我有一个我创建的头文件。我想在一个程序中使用这个头文件来吐出NFL团队的数据。我似乎在我的packers()函数下遇到了问题。我还没有真正理解指针，所以我不知道我在哪里错了。有人可以帮忙吗？首先是我的头文件：

好。现在它编译并运行输出＆＃34;绿湾包装工队＆＃34;当你选择＆＃39; 1＆＃39;。为什么它与[2] [0] [3]一起输入？我如何结合＆＃34; char superbowl和yearWon＆＃34;的其他功能？我想让它编译所有这些信息...

char *nflTeam[4][2][4] =
{                 {{"49ers", "Bears", "Bengals", "Bills"}, {"Broncos", "Browns", "Bucaneers", "Cardinals"}},     //data to that shows all team names in
                  {{"Chargers", "Chiefs", "Colts", "Cowboys"}, {"Dolphins", "Eagles", "Falcons", "Giants"}},     //the NFL
                  {{"Jaguars", "Jets", "Lions", "Packers"}, {"Panthers", "Patriots", "Raiders", "Rams"}},
                  {{"Ravens", "Redskins", "Saints", "Seahawks"}, {"Steelers", "Texans", "Titans", "Vikings"}}

};

char *superbowl[4][2][4] =
{                {{"Super Bowls XVI, XIX, XXIII, XXIV & XXIX", "Super Bowl XX", "Im sorry, they lost twice!", "They lost 4 times in a row!!"}, {"Super Bowls XXXII, XXXIII", "Cheer for a different team...", "Super Bowl XXXVII", "They went once...and lost once"}},                               //array of data that 
                 {{"Your team sucks. They lost.", "Super Bowl IV", "Super Bowl XLI", "Super Bowls VI, XII, XXVII, XXVIII & XXX"}, {"Super Bowls VII & VIII", "They have gone twice, and lost twice.", "Sorry to burst your bubble, they lost.", "Super Bowls XXI, XXV, XLII and XLVI"}},                   //that displays what super bowl
                 {{"Never been, never will.", "Super Bowl III", "You should cheer for the Packers", "Super Bowls I, II, XXXI and XLV"}, {"Im sorry, they lost once", "Super Bowls XXXVI, XXXVIII, XXXIX and XLIX", "Super Bowls XI & XV", "Super Bowl XXXIV"}},                                         //the corresponding team has won
                 {{"Super Bowls V, XXXV & XLVII", "Super Bowls XVII, XXII & XXVI", "Super Bowl XLIV", "Super Bowl XLVIII"}, {"Super Bowls IX, X, XIII, XIV, XL & XLIII", "Time to root for a new team.", "Gone once...and lost", "Gone 4 times, lost EVERY time. You should root for the Packers!"}}    //or not won
};

char *yearWon[4][2][4] =
{            {{"1982, 1985, 1989, 1990 & 1995","1986", "1982, 1989", "1991, 1992, 1993 & 1994"}, {"1998 & 1999", "They have never been to a Super Bowl", "2003", "2009"}},                          //array of data that shows the year/s
             {{"1995", "1970", "2007", "1972, 1978, 1993, 1994 & 1996"}, {"1973 & 1974", "1981 & 2005", "1999", "1987, 1991, 2008 & 2012"}},                                                         //the corresonding team won
             {{"um...", "1969", "Never been", "1967, 1968, 1997 & 2011"}, {"2004", "2002, 2004, 2005 & 2015", "1977 & 1981", "2000"}},   
             {{"1971, 2001 & 2013", "1983, 1988 & 1992", "2010", "2014"}, {"1975, 1976, 1979, 1980, 2006 & 2009", "They have never gone to the big dance!", "2000", "1970, 1974, 1975 & 1977"}}
};

接下来是我的代码：

#include <stdio.h>
#include "nflData.h>
int main(void)
{
    int packers(void);
    int x=0;

    while(1)                                    //while loop to run menu program
    {
        fprintf(stderr, "\n========MENU========\n\n");

        fprintf(stderr, "Choose a team to find out some NFL trivia!: \nEnter 4 to quit.\n");        //prompt user to enter a selection

        fprintf(stderr, "1) Packers\n");        //selection options for user
        fprintf(stderr, "2) Vikings\n");
        fprintf(stderr, "3) Cowboys\n");
        fprintf(stderr, "4) Exit\n");           //exits the program
        scanf("%d\n", &x);                      //scanner to read the selection of the user

        if(x<1 || x>4)
        {
            fprintf(stderr, "You entered an invalid entry. Please try again\n");    //denotes that user entered a number that did not
        }       
        else                                                                    //fall within the selection guidelines
        if(x==1)
        {
            packers();      //call to function packers
        }

    }
    return 0;
}

int packers()                   //i think the problem is in this function...
{
    int i=0;
    int j, k;
    for(j = 0; j<2; j++){       
        for(k=0; k<4; k++){
            i = *nflTeam[0][j][k];  
            fprintf(stderr,"The Green Bay %s", nflTeam[2][0][3]);   
        }
    }
    return i;


}

Answer 1

我想你想表明哪支球队在哪一年赢得了哪个超级碗，那么你的packers功能看起来

void packers()                 
    int j, k;
    for(int i=0; i<4; i++){
        for(int j=0; j<2; j++){
            for(int k=0; k<4; k++){
               fprintf(stderr,"The Green Bay %s won %s in %s\n",nflTeam[i][j][k] ,superbowl[i][j][k] , yearWon[i][j][k]);
            }
            printf("\n");
        }
    }
}

同样在主要变化中

scanf（“％d \ n”，＆amp; x）;

到

scanf（“％d”，＆amp; x）;

Answer 2

发布代码的其他问题，这一行，在'packers（）'中：

i = *nflTeam[0][j][k];

应该看：指向字符串的指针，但是，'i'被定义为'int'而'''正在尝试将字符串的内容分配给整数。

也许你的意思是：

no 'i' processing at all


fprintf(stderr,"The Green Bay %s won %s in %s", 
    nflTeam[0][j]pk], superbowl[0][j][k], yearwon[0][j][k]);

然而，为什么打印到'stderr'而不是'stdout'？

带有头文件和字符的三维数组

2 个答案: