Python while和for循环

While循环使用举例

# -*-coding:utf-8 -*-
__author__ = 'zhaixue.cc'
i = 0
s = 0
while i < 9:
    s =s + i
    i = i + 1
print s

运行结果：

C:\Python27\python.exe F:/python/python_proj/base.py
36
Process finished with exit code 0

For循环使用举例

# -*-coding:utf-8 -*-
__author__ = 'zhaixue.cc'
for i in range(1,5):
    print i
fruit = ['apple','orange','peach']
for i in fruit:
    print i
fruit = ('apple','orange','peach')
for i in fruit:
    print i
telbook ={'lilei':13745877854, 'jim':13654877854, 'kate':13425411254}
for i in telbook:
    print i,'\t',telbook[i]

运行结果如下：

C:\Python27\python.exe F:/python/python_proj/base.py
1
2
3
4
apple
orange
peach
apple
orange
peach
lilei    13745877854
jim      13654877854
kate     13425411254
Process finished with exit code 0