题解 | #递归画图# !!!!重点

# n1记录" "的数量, n2记录"#"的数量, c记录层次(1,2,3,...7)
def paint(n1,n2,c):
    #前三层
    if c < 4:
        print(" "*n1+"#"*n2)
        return paint(n1-1,n2+2,c+1)
    # 后四层
    elif 4<= c <=7:
        print(" "*n1+"#"*n2)
        return paint(n1+1, n2-2, c+1)
paint(4, 1, 1)