[問題] 不要用system("pause");?
看板C_and_CPP作者That5566is78 (5566反串好累)時間15年前 (2010/05/15 16:37)推噓21(22推 1噓 64→)留言87則, 19人參與討論串1/2 (看更多)
真的不要用system("PAUSE"); ?
http://www.gidnetwork.com/b-61.html
剛剛無聊GOOGLE c++ SYSTEM PAUSE 跑出的第一個
他有幾個理由
●Only in DOS & Win : not portable
●It's a very expensive and resource heavy function call
: 用推土機開門(殺雞用牛刀)
系統步驟:
1.suspend your program
2.call the operating system
3.open an operating system shell (relaunches the O/S in a sub-process)
4.the O/S must now find the PAUSE command
5.allocate the memory to execute the command
6.execute the command and wait for a keystroke
7.deallocate the memory
8.exit the OS
9.resume your program
●You must include a header you probably don't need: stdlib.h or cstdlib
Advice: in C :getchatr()
C++:cin.get()
不知道各位高手覺得如何?
我是新手 無法提供意見 囧rz
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