下面是源代码:
#include <iostream>
using namespace std;
int main()
{
int n;
cout<<"输入数字n:";
cin>>n;
for(int i=1; i<=n; i++)
{
for(int a=1; a<=n-i; a++)
{
cout<<" ";//两个空格;
}
for(int b=1; b<=i; b++)
{
cout<<b<<" ";
}
for(int c=i-1; c>=1; c--)
{
cout<<c<<" ";
}
cout<<endl;
}
for(int j=1; j<=n-1; j++)
{
for(int a=1; a<=j; a++)
{
cout<<" ";//两个空格;
}
for(int b=1; b<=n-j; b++)
{
cout<<b<<" ";
}
for(int c=n-j-1; c>=1; c--)
{
cout<<c<<" ";
}
cout<<endl;
}
return 0;
}
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