#include <iostream>

using namespace std;

class Beepers
{
public:
void beep();
void beepbeep();

};

void Beepers::beep()
{
asm
{
mov ah,2;
mov dl,7;
int 0x21;
}
}

void Beepers::beepbeep()
{
asm
{
mov ah,2;
mov dl,7;
int 0x21;
mov ah,2;
mov dl,7;
int 0x21;
}
}

int main()
{
Beepers noise;
noise.beep();
noise.beepbeep();
return 0;
}

大家看看是什么错误！


--------------------Configuration: derived - Win32 Debug--------------------
Compiling...
derived.cpp
E:\vc++\add\derived\derived.cpp(16) : error C2059: syntax error : '{'
E:\vc++\add\derived\derived.cpp(16) : error C2143: syntax error : missing ';' before '{'
E:\vc++\add\derived\derived.cpp(17) : error C2065: 'mov' : undeclared identifier
E:\vc++\add\derived\derived.cpp(17) : error C2146: syntax error : missing ';' before identifier 'ah'
E:\vc++\add\derived\derived.cpp(17) : error C2065: 'ah' : undeclared identifier
E:\vc++\add\derived\derived.cpp(18) : error C2146: syntax error : missing ';' before identifier 'dl'
E:\vc++\add\derived\derived.cpp(18) : error C2065: 'dl' : undeclared identifier
E:\vc++\add\derived\derived.cpp(19) : warning C4091: '' : ignored on left of 'int' when no variable is declared
E:\vc++\add\derived\derived.cpp(19) : error C2143: syntax error : missing ';' before 'constant'
E:\vc++\add\derived\derived.cpp(26) : error C2059: syntax error : '{'
E:\vc++\add\derived\derived.cpp(26) : error C2143: syntax error : missing ';' before '{'
E:\vc++\add\derived\derived.cpp(27) : error C2146: syntax error : missing ';' before identifier 'ah'
E:\vc++\add\derived\derived.cpp(28) : error C2146: syntax error : missing ';' before identifier 'dl'
E:\vc++\add\derived\derived.cpp(29) : warning C4091: '' : ignored on left of 'int' when no variable is declared
E:\vc++\add\derived\derived.cpp(29) : error C2143: syntax error : missing ';' before 'constant'
E:\vc++\add\derived\derived.cpp(30) : error C2146: syntax error : missing ';' before identifier 'ah'
E:\vc++\add\derived\derived.cpp(31) : error C2146: syntax error : missing ';' before identifier 'dl'
E:\vc++\add\derived\derived.cpp(32) : warning C4091: '' : ignored on left of 'int' when no variable is declared
E:\vc++\add\derived\derived.cpp(32) : error C2143: syntax error : missing ';' before 'constant'
执行 cl.exe 时出错.

derived.exe - 1 error(s), 0 warning(s)

我不太懂汇编 不过C++中用好像是 _asm{...}用的

mov ah,2;
mov dl,7;
int 0x21;
⒈ 汇编语言结尾没有分号。
⒉ DOS功能调用，显示字符，WIN32应用程序不能调用。

谢谢