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for_t.py
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57 lines (44 loc) · 1.17 KB
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#!/usr/bin/python
# -*- coding: UTF-8 -*-
for letter in 'Python': # 第一个实例
print 'current letter:', letter
fruits = ['banana', 'apple', 'mango']
for s in fruits: # 第二个实例
print 'current fruit:', s
print "Good bye!"
fruits = ['banana', 'apple', 'mango']
for index in range(len(fruits)):
print 'current fruit:', fruits[index]
print "Good bye!"
for num in range(10,20): # 迭代 10 到 20 之间的数字
for i in range(2,num): # 根据因子迭代
if num%i == 0: # 确定第一个因子
j=num/i # 计算第二个因子
print '%d = %d * %d' % (num,i,j)
break # 跳出当前循环
else: # 循环的 else 部分
print num, 'is a prime number\n'
'''
10 等于 2 * 5
11 是一个质数
12 等于 2 * 6
13 是一个质数
14 等于 2 * 7
15 等于 3 * 5
16 等于 2 * 8
17 是一个质数
18 等于 2 * 9
19 是一个质数
'''
for i in range(5):
print i
i += 2
print i
print 'loop over'
print'\n============\n'
i = 0
while i < 5:
print i
i += 2
print i
print 'loop over'