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fork与vfork区别?
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更多 “fork与vfork区别?” 相关考题
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分析下列程序。 int main() { printf("Hello") ; fork(); printf("Hello") ; fork(); printf("Hello") ; fork(); printf("Hello") ;} 不考虑其他因素,程序正常运行后共打印出多少个"Hello"?A.15B.11C.7D.4
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Chinese food is usually served in small portions which don’t require () with a knife or fork.
A.cuttingB.being cutC.to be cutD.to cut
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A person lays his knife and fork on his plate ____ the handles towards him.A: andB: butC: withD: by
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At a dinner, you can begin to eatA、when the guests sitting beside you begin.B、when the hostess says, "Let's begin."C、when the main course is served.D、when the hostess picks up her own spoon or fork..
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UNIX操作系统中,fork()系统调用用于创建进程。仔细阅读、分析下列程序,假设程序正确运行并创建子进程成功,那么,输出到屏幕的正确结果是main() { pid_t pid; pid = fork(); if (pid = = 0) printf ("Hello World\n"); else if (pid >0) printf ("Hello World\n"); else printf ("Hello World\n"); }A.什么都没有B.1行Hello WorldC.2行Hello WorldD.3行Hello World
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对于如下C语言程序 int main() { printf("Hello World\n"); fork(); fork(); printf("Hello World\n"); } 在UNIX操作系统中正确编译链接后,其正确的运行结果为A.共打印出2行Hello WorldB.共打印出3行Hello WorldC.共打印出4行Hello WorldD.共打印出5行Hello World
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Containers are loaded and discharged by ()(龙门吊).A、ship’s derricksB、fork trucksC、gantry cranesD、shore cranes
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()is very convenient equipment for loading and unloading goods. A、CraneB、pallet truckC、Fork liftD、Fork lift truck
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单选题Fork函数在父进程中的返回值是()。A
创建的子进程的进程标识号B
0C
-1D
1
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