遇到的测试笔试题-打印菱形
键盘就收数字n ,输出2*n+1行的菱形
如:n=2
打印为: *
***
*
代码为:
1 def printUpTriangle(x,y): 2 print(" "*(y+1-x)+"*"*(2*x-1)+" "*(y+1-x)) 3 4 def printDownTriangle(x,y): 5 print(" "*(x-y-1)+"*"*(2*((2*y+1)-x)+1)+" "*(x-y-1)) 6 7 8 n = int(raw_input("please input num: ")) 9 10 for i in range(1,(2*n+2)): 11 if(i<=n): 12 printUpTriangle(i,n) 13 elif(i==(n+1)): 14 print("*"*(2*n+1)) 15 elif(i>n+1): 16 printDownTriangle(i,n)