如何为这种模式编写 for 循环

Question

enter image description here

请说任何人只是为这个模式循环

Answer 1

say join ' ', map qw( * # )[$_ % 2], 1 .. $_ for 1 .. 5;

Answer 2

蟒蛇：

for a in range(0, 5):
    for b in range(0, a+1):
        if (b%2==0):
            print("#", end=' ')
        else:
            print("*", end=' ')
    print()

Answer 3

     for(int i=1;i<=5;i++)
     {
       for(int j=1;j<=i;j++)
       {
        if(j%2==0)
        {
          System.out.print("#");
        }else
        {
          System.out.print("*");
        }
          
       }
       System.out.println("\n");
     }