Python中的 pass 占位语句

pass

#!/usr/bin/Python
# -*- coding: UTF-8 -*-
# 输出 Python 的每个字母
for letter in 'Python': 
    if letter == 'h': 
        pass
        print '这是
        pass块' print '当前字母 :', letter
        print "Good bye!"

​pass语句​
while 成立条件:
    if i%7==0:
        pass
    else
        print('当前遍历值：%s' % (value))

#!/usr/bin/python3
# -*- coding: utf-8 -*-
import JSON

day=0;

jsonString='[{"day":"7","prize":"奖品2选1，超大鼠标垫/定制冰箱贴"},{"day":"14","prize":"奖品3选2，超大鼠标垫/定制冰箱贴/虎年笔记本"},{"day":"21","prize":"奖品5选3，超大鼠标垫/定制冰箱贴/虎年笔记本/双肩背包/WuKong熊手办"}]';
jsonObject = json.loads(jsonString)

# 循环嵌套语句
while day<=21:
    day+=1
    if day%7==0:
        index=int(day/7)
        item=jsonObject[index-1]
        print('连续更文第%s天，可获得奖励：%s\r\n' % (item['day'],item['prize']))
    else:
        pass