用c语言编辑2．输出以下的杨辉三角形（要求输出7行）。 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1

Sure, I can help you with that. Here's the code in C language to print the first 7 rows of the Pascal's triangle:

#include <stdio.h>

int main() {
    int n = 7;
    int a[n][n], i, j;
    for (i = 0; i < n; i++) {
        for (j = 0; j <= i; j++) {
            if (j == 0 || j == i) {
                a[i][j] = 1;
            } else {
                a[i][j] = a[i-1][j-1] + a[i-1][j];
            }
            printf("%d ", a[i][j]);
        }
        printf("\n");
    }
    return 0;
}

I hope that helps! Let me know if you have any other questions.