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比特币安全吗

[] D正确 A:int Int不一样 B:main只是程序执行的入口函数,放在哪里都是第一个执行,函数和函数之间没有位置限定 C:毫无疑问是错的int a, b;Right it's not the same it's just that the entry function that the program executes is placed wherever the first function executes and there's no place between the function and it's definitely wrong, okay

[] d肯定是错误的,C语言的函数不能嵌套定义,而d指的就是嵌套定义.但在函数体中可以对其他函数进行声明.楼上的把定义和声明搞混了.C语言是以文件为单位进行编译的,所以A错.main函数不要求一定要放在程序的开始位置,所以B错.最后只剩下C,所以答案是C.Certainly is a function of the wrong language cannot be nested definition and means the nested definition but the other functions can be declared in the function body upstairs got mixed up on the definitions and declarations is language files for compiling so wrong function does not require must be put in the program's starting position so finally only so the answer is wrong

BC正确.所有的语言都需要编译器转换成2进制数码通过,而答案A说C语言程序可以直接命令运行,那还要编译器干嘛呢!答案B、C都能转换成2进制数码运行,答案D说的不能单独编译涵数是错误的,单独编译函数也就是最简化的了,怎么会不能被编译呢All languages need a compiler to convert them to base numbers and the answer is that the language program can just run it by command so why do you need a compiler to convert them to base numbers and the answer is you can't compile them by themselves that's the wrong way to compile them by themselves that's the simplest way to compile them how can you not compile them

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