Xcode写c语言for循环报Loop will run at most once (loop increment never executed)

Question

问题遇到的现象和发生背景

xcode写c语言

问题相关代码，请勿粘贴截图

#include<stdio.h>
#include<string.h>
int main()
{
int a[10][10],i,j;
for(i=0;i<=9;i++)
{
for(j=0;j<=9;j++)
{
if(j==0)
a[i][j]=1;
else{if(i==0)
a[i][j]=0;
else
a[i][j]=a[i-1][j]+a[i-1][j-1];
}
}
printf("杨辉三角：\n");
for(i=0;i<=9;i++)
{for(j=0;j<=i;j++)
printf("%d ",a[i][j]);
if(j==i+1)
printf("\n");
}
getchar();
return 0;
}
}

Answer 1

else if语句多了大括号,删除即可

if(j==0)
a[i][j]=1;
else if(i==0)
a[i][j]=0;
else
a[i][j]=a[i-1][j]+a[i-1][j-1];