else if (board[i][j] == 'M' && mark[i][j] != '!') { mark[i][j] = 'X'; (*mine)--;是啥意思

这段代码是扫雷游戏中的一部分，用于标记一个格子为“已经被揭开，但是是地雷”的状态。

具体来说，如果当前格子是地雷（'M'），并且没有被标记为“已经揭开但是是地雷”（'!'），那么就将该格子标记为“已经揭开但是是地雷”（'X'），同时将地雷数量减1（mine--）。

这个操作的意义在于，标记一些格子为“已经揭开但是是地雷”之后，可以让玩家在后续游戏中知道哪些格子是地雷，从而避免误触。

相关问题

#include<stdio.h> #define Row a #define Col b #define Mine c void Board(int board[Row][Col],int mark[Row][Col]) { int i,j,k=0; do{ for(i=0;i<Row;i++) { for(j=0;j<Col;j++) { scanf("%c",&board[i][j]); mark[i][j]="."; if(board[i][j]=="") k++; } printf("\n"); } }while(k!=Mine); } void Number(int x,int y,int board[Row][Col],int mark[Row][Col]) { int i,j,n=0; for(i=x-1;i<=x+1;i++) { for(j=y-1;j<=y+1;i++) { if(board[i][j]=="") n++; } } mark[x][y]=n; } void Print(int mark[Row][Col]) { int i,j; for(i=0;i<Row;i++) { for(j=0;j<Col;j++) { printf("%c",mark[i][j]); } } } void Operation(int o,int x,int y,int win,int board[Row][Col],int mark[Row][Col],int mine) { switch(o) { case 1:Number(x,y,board[Row][Col],mark[Row][Col]); while(mark[x][y]==0){int i,j; for(i=x-1;i<=x+1;i++) { for(j=y-1;j<=y+1;j++) { Number(i,j,board[Row][Col],mark[Row][Col]); win=win+1; } } } break; case 2:if(mark[x][y]=="."||mark[x][y]=="?"){mark[x][y]="!";mine=mine-1;} break; case 3:if(mark[x][y]=="."){mark[x][y]="?";}if(mark[x][y]=="!"){mark[x][y]="?";mine=mine+1;} break; case 4:if(mark[x][y]=="?"){mark[x][y]=".";}if(mark[x][y]=="!"){mark[x][y]=".";mine=mine+1;} break; case 9: if(mark[x][y]=="."||mark[x][y]=="?"||mark[x][y]=="!") break; int i,j,m=0,v=0; for(i=x-1;i<=x+1;i++) { for(j=y-1;j<=y+1;i++) { if(mark[i][j]=="!") m++; if(mark[i][j]=="."&&board[i][j]=="") v++; } } if(m==mark[x][y]&&v!=0) { printf("Hit mine, you lose"); break; } if(m==mark[x][y]&&v==0) { for(i=x-1;i<=x+1;i++) { for(j=y-1;j<=y+1;i++) { if(mark[i][j]==".") { Number(i,j,board[Row][Col],mark[Row][Col]); win=win+1; } } } } } } int main() { int win=0; int step=0; int t,a,b,c; scanf("%d",&t); switch(t) { case 1:a=9,b=9,c=10; break; case 2:a=16,b=16,c=40; break; case 3:a=16,b=30,c=99; break; case 4:scanf("%d %d %d",&a,&b,&c); break; } printf("\n"); int mine=c; int board[Row][Col],mark[Row][Col]; Board(board[Row][Col]); int o,x,y; while(win<ab-c) { scanf("%d %d %d",&o,&x,&y); step=step+1; if(o==1&&board[x][y]=="") { printf("Hit mine, you lose"); break; } if(o!=1&&o!=2&&o!=3&&o!=4&&o!=9) { win=win+1; } if(x<1||x>Row||y<1||y>Col) { win=win+1; } else { Operation(o,x,y); } printf("Game in progress"); printf("操作次数:%d 剩余雷数:%d",step,mine); Print(mark[Row][Col]); } while(win==ab-c) { printf("Game over, you win"); } int i,j; for(i=0;i<Row,i++) { for(j=0;j<Col;j++) { if(board[i][j]=="*") mark[i][j]=board[i][j]; } } Print(mark[Row][Col]); return 0; } 修改代码

#include<stdio.h>
#define Row 9
#define Col 9
#define Mine 10

void Board(char board[Row][Col], char mark[Row][Col]) {
int i, j, k=0;
do {
for(i=0; i<Row; i++) {
for(j=0; j<Col; j++) {
scanf(" %c", &board[i][j]);
mark[i][j]='.';
if(board[i][j]=='*') k++;
}
}
} while(k!=Mine);
}

void Number(int x, int y, char board[Row][Col], char mark[Row][Col]) {
int i, j, n=0;
for(i=x-1; i<=x+1; i++) {
for(j=y-1; j<=y+1; j++) {
if(i>=0 && i<Row && j>=0 && j<Col && board[i][j]=='*') n++;
}
}
mark[x][y]=n+'0';
}

void Print(char mark[Row][Col]) {
int i, j;
for(i=0; i<Row; i++) {
for(j=0; j<Col; j++) {
printf("%c ", mark[i][j]);
}
printf("\n");
}
}

void Operation(int o, int x, int y, int &win, char board[Row][Col], char mark[Row][Col], int &mine) {
switch(o) {
case 1:
if(board[x][y]=='*') {
printf("Hit mine, you lose\n");
break;
}
if(mark[x][y]=='.') {
Number(x, y, board, mark);
win++;
if(board[x][y]=='0') {
int i, j;
for(i=x-1; i<=x+1; i++) {
for(j=y-1; j<=y+1; j++) {
if(i>=0 && i<Row && j>=0 && j<Col && mark[i][j]=='.') {
Operation(1, i, j, win, board, mark, mine);
}
}
}
}
}
break;
case 2:
if(mark[x][y]=='.') {
mark[x][y]='!';
mine--;
}
break;
case 3:
if(mark[x][y]=='.') {
mark[x][y]='?';
} else if(mark[x][y]=='!') {
mark[x][y]='?';
mine++;
}
break;
case 4:
if(mark[x][y]=='?') {
mark[x][y]='.';
} else if(mark[x][y]=='!') {
mark[x][y]='.';
mine++;
}
break;
case 9:
if(mark[x][y]!='.') break;
int i, j, m=0, v=0;
for(i=x-1; i<=x+1; i++) {
for(j=y-1; j<=y+1; j++) {
if(i>=0 && i<Row && j>=0 && j<Col) {
if(mark[i][j]=='!') m++;
if(mark[i][j]=='.' && board[i][j]=='*') v++;
}
}
}
if(m==mark[x][y]-'0' && v!=0) {
for(i=x-1; i<=x+1; i++) {
for(j=y-1; j<=y+1; j++) {
if(i>=0 && i<Row && j>=0 && j<Col && mark[i][j]=='.') {
Operation(1, i, j, win, board, mark, mine);
}
}
}
}
break;
}
}

int main() {
int win=0, step=0;
int t, mine=Mine;
char board[Row][Col], mark[Row][Col];
printf("请选择难度：\n1.初级(9x9,10个雷)\n2.中级(16x16,40个雷)\n3.高级(16x30,99个雷)\n4.自定义\n");
scanf("%d", &t);
switch(t) {
case 1: break;
case 2: Row=Col=16; mine=40; break;
case 3: Col=30; mine=99; break;
case 4: scanf("%d %d %d", &Row, &Col, &mine); break;
}
printf("\n");
Board(board, mark);
int o, x, y;
printf("Game in progress\n");
while(win<Row*Col-mine) {
scanf("%d %d %d", &o, &x, &y);
step++;
if(x<0 || x>=Row || y<0 || y>=Col) {
printf("Invalid input\n");
continue;
}
Operation(o, x, y, win, board, mark, mine);
printf("操作次数:%d 剩余雷数:%d\n", step, mine);
Print(mark);
}
printf("Game over, you win\n");
Print(board);
return 0;
}

#include<stdio.h> #define Row a #define Col b #define Mine c void Board(int board[Row][Col],int mark[Row][Col]) { int i,j,k=0; do{ for(i=0;i<Row;i++) { for(j=0;j<Col;j++) { scanf("%c",&board[i][j]); mark[i][j]="."; if(board[i][j]=="") k++; } printf("\n"); } }while(k!=Mine); } void Number(int x,int y,int board[Row][Col],int mark[Row][Col]) { int i,j,n=0; for(i=x-1;i<=x+1;i++) { for(j=y-1;j<=y+1;i++) { if(board[i][j]=="") n++; } } mark[x][y]=n; } void Print(int mark[Row][Col]) { int i,j; for(i=0;i<Row;i++) { for(j=0;j<Col;j++) { printf("%c",mark[i][j]); } } } void Operation(int o,int x,int y,int win,int board[Row][Col],int mark[Row][Col],int mine) { switch(o) { case 1:Number(x,y,board[Row][Col],mark[Row][Col]); while(mark[x][y]==0){int i,j; for(i=x-1;i<=x+1;i++) { for(j=y-1;j<=y+1;j++) { Number(i,j,board[Row][Col],mark[Row][Col]); win=win+1; } } } break; case 2:if(mark[x][y]=="."||mark[x][y]=="?"){mark[x][y]="!";mine=mine-1;} break; case 3:if(mark[x][y]=="."){mark[x][y]="?";}if(mark[x][y]=="!"){mark[x][y]="?";mine=mine+1;} break; case 4:if(mark[x][y]=="?"){mark[x][y]=".";}if(mark[x][y]=="!"){mark[x][y]=".";mine=mine+1;} break; case 9: if(mark[x][y]=="."||mark[x][y]=="?"||mark[x][y]=="!") break; int i,j,m=0,v=0; for(i=x-1;i<=x+1;i++) { for(j=y-1;j<=y+1;i++) { if(mark[i][j]=="!") m++; if(mark[i][j]=="."&&board[i][j]=="") v++; } } if(m==mark[x][y]&&v!=0) { printf("Hit mine, you lose"); break; } if(m==mark[x][y]&&v==0) { for(i=x-1;i<=x+1;i++) { for(j=y-1;j<=y+1;i++) { if(mark[i][j]==".") { Number(i,j,board[Row][Col],mark[Row][Col]); win=win+1; } } } } } } int main() { int win=0; int step=0; int t,a,b,c; scanf("%d",&t); switch(t) { case 1:a=9,b=9,c=10; break; case 2:a=16,b=16,c=40; break; case 3:a=16,b=30,c=99; break; case 4:scanf("%d %d %d",&a,&b,&c); break; } printf("\n"); int mine=c; int board[Row][Col],mark[Row][Col]; Board(board[Row][Col]); int o,x,y; while(win<ab-c) { scanf("%d %d %d",&o,&x,&y); step=step+1; if(o==1&&board[x][y]=="") { printf("Hit mine, you lose"); break; } if(o!=1&&o!=2&&o!=3&&o!=4&&o!=9) { win=win+1; } if(x<1||x>Row||y<1||y>Col) { win=win+1; } else { Operation(o,x,y); } printf("Game in progress"); printf("操作次数:%d 剩余雷数:%d",step,mine); Print(mark[Row][Col]); } while(win==ab-c) { printf("Game over, you win"); } int i,j; for(i=0;i<Row,i++) { for(j=0;j<Col;j++) { if(board[i][j]=="*") mark[i][j]=board[i][j]; } } Print(mark[Row][Col]); return 0; } 用c语言Debug

这段代码存在很多问题，首先，在宏定义时应该使用 #define a 9 而不是 #define Row a，因为宏定义是对字符串进行替换。其次，在 Board 函数中，应该使用 getchar() 函数读取输入的字符，而不是 scanf("%c", &board[i][j])，因为 scanf 会忽略空格和换行符，导致读取错误。另外，在 Number 函数中，for 循环内应该是 j++ 而不是 i++，否则会导致死循环。还有在 Operation 函数中，case 9 的 for 循环内，j 的循环条件应该是 j<=y+1 而不是 j<=y+1。最后，在 main 函数中，调用 Board 和 Print 函数时不需要传递数组的下标，应该直接传递数组名即可。

以下是修改后的代码：

#include <stdio.h>
#define a 9
#define b 9
#define c 10

void Board(int board[a][b], int mark[a][b]) {
    int i, j, k = 0;
    do {
        for (i = 0; i < a; i++) {
            for (j = 0; j < b; j++) {
                board[i][j] = getchar();
                mark[i][j] = ".";
                if (board[i][j] == '\n') {
                    board[i][j] = getchar();
                }
                if (board[i][j] == '*') k++;
            }
        }
    } while (k != c);
}

void Number(int x, int y, int board[a][b], int mark[a][b]) {
    int i, j, n = 0;
    for (i = x - 1; i <= x + 1; i++) {
        for (j = y - 1; j <= y + 1; j++) {
            if (board[i][j] == '*' || i < 0 || i >= a || j < 0 || j >= b) {
                continue;
            }
            if (board[i][j] == '.') {
                Number(i, j, board, mark);
            } else {
                n++;
            }
        }
    }
    mark[x][y] = n + '0';
}

void Print(int mark[a][b]) {
    int i, j;
    for (i = 0; i < a; i++) {
        for (j = 0; j < b; j++) {
            printf("%c", mark[i][j]);
        }
        printf("\n");
    }
}

void Operation(int o, int x, int y, int *win, int board[a][b], int mark[a][b], int *mine) {
    switch (o) {
    case 1:
        if (board[x][y] == '*') {
            printf("Hit mine, you lose");
            *win = 1;
        } else {
            Number(x, y, board, mark);
            while (mark[x][y] == '0') {
                int i, j;
                for (i = x - 1; i <= x + 1; i++) {
                    for (j = y - 1; j <= y + 1; j++) {
                        if (board[i][j] == '*' || i < 0 || i >= a || j < 0 || j >= b || mark[i][j] != '.') {
                            continue;
                        }
                        Number(i, j, board, mark);
                    }
                }
            }
            (*win)++;
        }
        break;
    case 2:
        if (mark[x][y] == '.' || mark[x][y] == '?') {
            mark[x][y] = '!';
            (*mine)--;
        }
        break;
    case 3:
        if (mark[x][y] == '.') {
            mark[x][y] = '?';
        } else if (mark[x][y] == '!') {
            mark[x][y] = '?';
            (*mine)++;
        }
        break;
    case 4:
        if (mark[x][y] == '?') {
            mark[x][y] = '.';
        } else if (mark[x][y] == '!') {
            mark[x][y] = '.';
            (*mine)++;
        }
        break;
    case 9:
        if (mark[x][y] == '.' || mark[x][y] == '?' || mark[x][y] == '!') {
            break;
        }
        int i, j, m = 0, v = 0;
        for (i = x - 1; i <= x + 1; i++) {
            for (j = y - 1; j <= y + 1; j++) {
                if (board[i][j] == '*' && mark[i][j] == '!') {
                    m++;
                }
                if (board[i][j] == '.' && mark[i][j] == '.') {
                    v++;
                }
            }
        }
        if (m == mark[x][y] - '0' && v != 0) {
            for (i = x - 1; i <= x + 1; i++) {
                for (j = y - 1; j <= y + 1; j++) {
                    if (board[i][j] == '.' && mark[i][j] == '.') {
                        Operation(1, i, j, win, board, mark, mine);
                    }
                }
            }
        }
        break;
    }
}

int main() {
    int win = 0;
    int step = 0;
    int t, mine = c;
    scanf("%d", &t);
    switch (t) {
    case 1:
        break;
    case 2:
        a = b = 16;
        c = 40;
        break;
    case 3:
        a = 16;
        b = 30;
        c = 99;
        break;
    case 4:
        scanf("%d %d %d", &a, &b, &c);
        break;
    }
    int board[a][b], mark[a][b];
    Board(board, mark);
    int o, x, y;
    while (win == 0 && mine > 0) {
        scanf("%d %d %d", &o, &x, &y);
        if (x < 0 || x >= a || y < 0 || y >= b) {
            continue;
        }
        if (o == 1 && board[x][y] == '*') {
            printf("Hit mine, you lose");
            mark[x][y] = '*';
            Print(mark);
            break;
        }
        Operation(o, x, y, &win, board, mark, &mine);
        printf("Game in progress\n");
        printf("操作次数:%d 剩余雷数:%d\n", ++step, mine);
        Print(mark);
    }
    if (mine == 0) {
        printf("Game over, you win");
    }
    return 0;
}