c - 使用 for 循环的二维数组赋值

Question

我正在尝试创建字符网格，在本例中我使用的是 3×3 网格。我正在使用两个 for 循环从一个单独的一维字符数组进行赋值，但每一行的最终值总是等于下一行的第一个值，但我不明白为什么。我计算行和列有问题吗？

char text[8] = "abcdefghi";
char grid[2][2];

int i,j;
for(i=0; i<=8; i++)
{
    char c = text[i];
    int row = i/3;
    int col = i%3;
    printf("%c   row=%d col=%d i=%d\n", c, row, col, i);
    grid[row][col] = c;
}

printf("------\n");

for(i=0; i<3; i++)
{
    for(j=0; j<3; j++)
    {
        printf("%c   row=%d col=%d \n", grid[i][j], i, j);
    }
}

Answer 1

改变这两个声明

char text[8] = "abcdefghi"; //you require size of 10  
//9 bytes to store 9 characters and extra one is to store null character

char grid[2][2];  here you need to declare 3 by 3    
// array[2][2] can able to store four characters only  
// array[3][3] can store 9 characters  

像这样

char text[10] = "abcdefghi"; //you require size of 10
char grid[3][3];  here you need to declare 3 by 3