python打印一个菱形图案

 1 rows=int(input("输入列数："))
 2 i=j=k=1
 3 print("打印一个菱形:\n")
 4 #菱形的上半部分
 5 for i in range(rows):
 6     for j in range(rows-i):
 7         print(" ",end=" ")
 8         j+=1
 9     for k in range(2*i-1):
10         print("*",end=" ")
11         k+=1
12     print("\n")
13 #菱形的下半部分
14 for i in range(rows):
15     for j in range(i):
16         print(" ",end=" ")
17         j+=1
18     for k in range(2*(rows-i)-1):
19         print("*",end=" ")
20         k+=1
21     print("\n")

 1 rows=int(input("输入列数："))
 2 i=j=k=1
 3 print("打印一个菱形:\n")
 4 #菱形的上半部分
 5 for i in range(rows):
 6     for j in range(rows-i):
 7         print(" ",end=" ")
 8         j+=1
 9     for k in range(2*i-1):
10         if k==0 or k==2*i-2:
11             print("*",end=" ")
12         else:
13             print(" ",end=" ")
14         k+=1
15     print("\n")
16 #菱形的下半部分
17 for i in range(rows):
18     for j in range(i):
19         print(" ",end=" ")
20         j+=1
21     for k in range(2*(rows-i)-1):
22         if k==0 or k==2*(rows-i)-2:
23             print("*",end=" ")
24         else:
25             print(" ",end=" ")
26         k+=1
27     print("\n")