In [6]:

    

def print_trigle(m, n):
    for i in range(1, n+1):
        for k in range(n - i, 0, -1):
            print(' ',end = '')
        for j in range(1, i+1):
            print(m,'',end = '')
        print()
a = input('请输入符号：')
b = int(input('请输入行数：'))
print_trigle(a, b)


    

    




请输入符号：\
请输入行数：8
       \ 
      \ \ 
     \ \ \ 
    \ \ \ \ 
   \ \ \ \ \ 
  \ \ \ \ \ \ 
 \ \ \ \ \ \ \ 
\ \ \ \ \ \ \ \