調試過debug版本的vc程式的人一定對0xCCCCCCCC和0xCDCDCDCD這樣的記憶體很有印象。這是debug版本的CRT為了方便偵錯工具,在分配出來還沒有初始化的時候提供的初始值。實際上,Windows上面還有更多這樣的初始值,見下表:Uninitialized BAADF00DUsed by Microsoft's LocalAlloc/GlobalAlloc/HeapAlloc(LMEM_FIXED) to mark uninitialised allocated heap
SAP系統是如何確定採購訂單PO的貨品價格的?SAP管這個過程叫Price Determination價格確定。在SCM500中,關於Price Determination,解釋如下:If you create a purchasing document, the system attempts to find a price for the material to be procured. The system always searches from “specific” to
<html><head><meta http-equiv="Content-Type" content="text/html;charset=gb2312"><title>帶開關的Form時鐘</title><script language="JavaScript">var enabled=0; //定義一個變數表示 開 or 關 0:開,1:關 function TOfunc() { TO =
DRother向DR,BDR發送DD,LSA request或者LSA UPdate時目標地址是AllDRouter(224.0.0.6) DR,BDR向DRother發送DD,LSA Request或者LSA Update時目標地址是AllSPFRouter(224.0.0.5)AllSPFRouters This multicast address has been assigned the value 224.0.0.5. All
所謂web,指的是通過瀏覽器登入到web網站上,享受網站提供的服務;所謂app,就是指application,即將服務以application的形式呈現在手機端;(做Mobile的人都喜歡用App這個縮減詞,至於原因,有一個有趣的解釋:“Apps” is short for “applications“, apparently everything needs to be short in the mobile online web 2.0
1.ABSTRACTION : Process of identifying the essential details to be known and ignoring the non-essential details from the perspective of the end user 2.ENCAPSULATION : A mechanism of hiding the internal details and allowing a simple interface which