方式一:
app_list = [1234, 5677, 8899] for app_id in app_list: print app_id
输出: 1234 5677 8899
方式二:
app_list = [1234, 5677, 8899] for index,app_id in enumerate(app_list): print index, app_id
输出: 0 1234 1 5677 2 8899
方式三: 使用range()或xrange()
app_list = [1234, 5677, 8899] for i in range(len(app_list)): print i,app_list[i]
输出: 0 1234 1 5677 2 8899
方式四: 使用iter()
app_list = [1234, 5677, 8899] for app_id in iter(app_list): print app_id
输出: 1234 5677 8899