Python入门（五）流程控制、循环简介

for循环：在python for 循环遍历序列，如一个列表或者字符
<pre name="code" class="python">
#coding:utf8
infoList = ['nan','shuai','qian']
for x in infoList:
if x == 'shuai':
print 'with first'
elif x == 'qian':
print 'with second'
elif x == 'nan':
print 'with ugly'
else:
print 'go out'
</pre>


打印九九乘法表
<pre name="code" class="python">
#coding:utf8

for x in range(1,10):
for y in xrange(1,10):
print x,y, x*y
</pre>


循环控制：
break, 结束循环
continue, 跳过本次循环后继续
pass. 占位，代码桩

<pre name="code" class="python">
for i in range(10):
if i == 2:continue
if i == 10: break
if i == 4: pass
print i 
</pre>