python--for 

 1 #_*_coding:UTF-8_*_
 2 rows = int(raw_input('输入列数：'))
 3 i = j = k = 1
 4 print "等腰"
 5 for i in range(0,rows):
 6     for k in range(0,rows-i):
 7         print"*",
 8         k +=1
 9     i +=1
10     print "\n"
11 print "打印空心等边三角形"
12 for i in range(0,rows+1):
13     for j in range(0,rows-i):
14         print" ",
15         j +=1
16     for k in range(0,2*i-1):
17         if k == 0 or k == 2*i-2 or i == rows:
18             if i == rows:
19                 if k % 2 == 0:
20                     print "*",
21                 else:
22                     print " ",
23             else:
24                 print "*",
25         else:
26             print " ",
27         k += 1
28     print"\n"
29     i += 1

 

posted on 2018-08-17 10:42  fortwater  阅读(105)  评论(0)    收藏  举报

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