读取文本文件并以ascii格式显示内容

Question

我正在尝试读取迷宫文件并转换为ascii并在代码运行时显示。我似乎无法得到它。我如何阅读和显示文件。提前谢谢

#include <stdio.h>
#include <stdlib.h>

#define height 8
#define width 12
#define WALL 219
#define SPACE ' '

//symbols
// where a space - a clear space in the maze
// 1 - a wall
// 2 - the entrance door(starting point)
// 3 - exit door
// 4 - internal destination point(end point)
// 5 - a way point

void displaymaze(int i, int j);
char maze[height][width];
int i, j;

int
main()
{
    FILE *myFile;

    myFile = fopen("example1.txt", "r");
    fclose(myFile);

    displaymaze(i, j);
    return (0);
}

void
displaymaze(int i, int j)
{

    printf("MAZE:\n");

    for (i = 0; i < height; i++) {
        for (j = 0; j < width; j++) {
            if (maze[i][j] == '1') {
                maze[i][j] = WALL;
            }
            else if (maze[i][j] == ' ') {
                maze[i][j] = SPACE;
            }
            else if (maze[i][j] == '2') {
                maze[i][j] = ('S');
            }
            else if (maze[i][j] == '3')
                maze[i][j] = ('E');
            printf("%c", maze[i][j]);

        }
        printf("\n");
    }
}