打印左帕斯卡尔星三角的C++程序

编写一个C++程序，使用for循环打印星形三角形的左面通分。

#include using namespace std;

int main() { int i, j, k, rows;

cout << "Enter Left Pascals Star Triangle Row = ";
cin >> rows;

cout << "Left Pascals Star Triangle Pattern\\n"; 

for(i = 1; i <= rows; i++)
{
	for(j = i; j < rows; j++)
	{
        cout << "  ";
    }
    for(k = 1; k <= i; k++)
    {
        cout << "\* ";
    }
    cout << "\\n";
}	

for(i = rows; i >= 1; i--)
{
	for(j = i; j <= rows; j++)
	{
        cout << "  ";
    }
    for(k = 1; k < i; k++)
    {
        cout << "\* ";
    }
    cout << "\\n";
}

return 0;

这个C++例子使用一个while循环来打印一个给定字符的左帕斯卡三角形图案。

#include using namespace std;

int main() { int i = 1, j, k, rows; char ch;

cout << "Enter Left Pascals Star Triangle Row = ";
cin >> rows;

cout << "Symbol to print Left Pascals Star Triangle = ";
cin >> ch;

cout << "Left Pascals Star Triangle Pattern\\n"; 

while(i <= rows)
{
    j = i;
	while( j < rows)
	{
        cout << "  ";
        j++;
    }
    k = 1;
    while( k <= i)
    {
        cout << ch << " ";
        k++;
    }
    cout << "\\n";
    i++;
}	

i = rows;
while( i >= 1)
{
    j = i;
	while( j <= rows)
	{
        cout << "  ";
        j++;
    }
    k = 1;
    while( k < i)
    {
        cout << ch << " ";
        k++;
    }
    cout << "\\n";
    i--;
}	
return 0;

Enter Left Pascals Star Triangle Row = 13
Symbol to print Left Pascals Star Triangle = &
Left Pascals Star Triangle Pattern
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