一,python打印空心等边三角形
1, 利用python打印如下空心等边三角形
* *
* * * *
* * * * *
* * * *
2,程序如下:
print "打印空心等边三角形"
rows=int(input("输入行数: "))
for i in range(rows):
if(i==rows-1):
for k in range(2*rows-1):
if(k%2==0):
print "*",
else:
print " ",
print "\n"
else:
for j in range