遍历UI

Poco提供了非常简单的方式来处理一系列UI交互，直接用for循环进行迭代遍历即可。在for循环中，每次迭代的对象都是一个UI代理，所以可以像之前说的那样，去访问对象的属性和进行对象操作。

The following example shows how to drag all stars to the shell. Yep it is the same example in homepage.

../../../_images/overview2.gif 
# coding=utf-8

import time
from poco.drivers.unity3d import UnityPoco

poco = UnityPoco()

poco('btn_start').click()
poco(text='drag drop').click()
time.sleep(1.5)

shell = poco('shell').focus('center')
for star in poco('star'):
    star.drag_to(shell)
time.sleep(1)

assert poco('scoreVal').get_text() == "100", "score correct."
poco('btn_back', type='Button').click()

Here is another example to iterate over all names of the model.

../../../_images/iteration_over_elements1.png 
# coding=utf-8

import time
from poco.drivers.unity3d import UnityPoco

poco = UnityPoco()

for name in poco('plays').offspring('fish').child('name'):
    print(name.get_text())  # pearl/shark/balloonfish

下面例子展示了怎么样在商城界面中购买当前屏幕的所有商品。

../../../_images/g62-shop.png 
# coding=utf-8

poco = Poco(...)

bought_items = set()
for item in poco('main_node').child('list_item').offspring('name'):
    # get its text value
    item_name = item.get_text()

    # markdown the bought item
    if item_name not in bought_items:
        item.click()
        bought_items.add(item_name)

更多示例：