Python的内置方法 str.center(width [, fillchar]) 就能轻而易举打印出来：str即是数量不等的星号，width即是最大宽度（7个空格），默认填充字符fillchar就是空格。两个for循环搞定！代码如下：
|
1
2
3
4
5
|
s
=
'*'
for
i
in
range
(
1
,
8
,
2
):
print
((s
*
i).center(
7
))
for
i
in
reversed
(
range
(
1
,
6
,
2
)):
print
((s
*
i).center(
7
))
|
方法二
s
=
'*'
for
i
in
range
(
1
,
8
,
2
):
t
=
(
7
-
i)
/
/
2
print
(
' '
*
t
+
s
*
i
+
' '
*
t)
for
i
in
reversed
(
range
(
1
,
6
,
2
)):
t
=
(
7
-
i)
/
/
2
print
(
' '
*
t
+
s
*
i
+
' '
*
t)