Python2.x_流程控制

 

一 条件判断

1 if...

2 if...else...

3 if...elif...else...

#coding:utf-8
sex = 'Male'
if sex == 'Male':
    print '男'
elif sex == 'Femal':
    print '女'
else:
    print '人妖？'

二 循环语句

1 for...in...

sum = 0
for x in range(1,6): 
    sum = sum + x 
print 'sum=%d'%sum # sum=15

2 while...

n, sum = 5, 0
while n > 0:
    sum, n = sum + n, n - 1
print 'sum=%d'%sum # sum=15