Directory polling - this application allows you to poll an empty directory and notifies you when new files become available . a readme . doc file explaining its usage is include 这个应用程序允许你确定一个空的目录，然后在这个目录中出现新文件时向你通报。包括一个说明它用法的帮助文件。
As an example of why these operations should not be asynchronous , imagine if you went to a book seller s web application and had to poll or wait for a pub - sub event for the catalog to be displayed or an item to be added to the shopping cart 举个范例来说明为什么这些操作不应该是非同步的，设想一下，如果您进入一位书商的web应用程式，还必须轮询或等待发布-订阅事件来显示目录或将物品加入到购物车中！
The model is based on three premises : 1 ) people have a " quasi - statistical organ , " a sixth - sense if you will , which allows them to know the prevailing public opinion , even without access to polls , 2 ) people have a fear of isolation and know what behaviors will increase their likelihood of being socially isolated , and 3 ) people are reticent to express their minority views , primarily out of fear of being isolated 该模型基于三个假设： 1 ）人们具有一个“准统计器官” ，一种即使不通过民意测验，也能使他们知道主流民意的第六感； 2 ）人们害怕被孤立，并且知道什么行为将提高其被社会孤立的可能新； 3 ）人们选择沉默，而不去表达“少数派意见” ，主要是担心被孤立。
