int main(int argc, char* argv[])
{
UNREFERENCED(argc);
UNREFERENCED(argv);
HRESULT Error = S_OK;
Error = CoInitialize(NULL); //初始化COM库
if ( FAILED(Error) )
{
cout << "初始化COM库失败!" <<endl;
goto exit;
}
long lResult = 0; //保存运算结果
ICalculator* pCalc = NULL;
char* strExpression = NULL;
bool bException = false;
char* str[50] = { "1+2=", "2-1=", "2*3=", "6/3=", "6/0=",
"1-2=", "0+0=", "0-0=", "100!=", "100E+2=",
"1+100D=", "1+=", "1+++1=", "1---1=", "1*+1=",
"1+2===E===", "10/11DD=", "/8/2=", "*1/1=", "1/1!====",
"1/1!===", "1!/0=", "1!*0=", "1!/1=", "1!/2=",
"9!/3==", "9!/3!=", "1!*1=", "1!+4=", "9!/+-*3=",
"111/*-+111=", "11*11d=", "11/2=", "65535+2=", "65535!-2=",
"60000*100=", "60000!*100!=", "1+2+3+4+5=", "32s+2=", "20/5/5/5=",
"20+5*2/5=", "20=+5!=", "2+3=4+2=", "3+2*-7C2*3=", "3*-2=3*8!=",
"2+3=====", "2/3=====", "10e+20*10*8!=", "2*3E88D=", "2+++++-*3="};
//开始处理表达式,调用接口ICalculator进行计算
for( int i=0; i<50; i++)
{
bException = false;
Error = CoCreateInstance(
CLSID_Calculator,
NULL,
CLSCTX_INPROC_SERVER,
IID_ICalculator,
reinterpret_cast<void**>(&pCalc)
);
if ( FAILED(Error) )
{
cout << "创建组件失败!" <<endl;
goto exit;
}
strExpression = str[i];
while (*strExpression != '\0')
{
if ( bException ) //如果有异常产生则处理下一个表达式
{
break;
}
switch ( *strExpression )
{
case '0':
Error = pCalc->PutKey(LWK_0);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '1':
Error = pCalc->PutKey(LWK_1);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '2':
Error = pCalc->PutKey(LWK_2);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '3':
Error = pCalc->PutKey(LWK_3);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '4':
Error = pCalc->PutKey(LWK_4);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '5':
Error = pCalc->PutKey(LWK_5);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '6':
Error = pCalc->PutKey(LWK_6);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '7':
Error = pCalc->PutKey(LWK_7);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '8':
Error = pCalc->PutKey(LWK_8);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '9':
Error = pCalc->PutKey(LWK_9);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '+':
Error = pCalc->PutKey(LWK_ADD);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
bException = true;
break;
}
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '-':
Error = pCalc->PutKey(LWK_SUB);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
bException = true;
break;
}
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '*':
Error = pCalc->PutKey(LWK_MUL);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
bException = true;
break;
}
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '/':
Error = pCalc->PutKey(LWK_DIV);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
bException = true;
break;
}
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '=':
Error = pCalc->PutKey(LWK_EQU);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
bException = true;
break;
}
cout << "数据越界，范围-65536至65535" << endl;
bException = true;
}
break;
case '!':
pCalc->PutKey(LWK_REV);
break;
case 'C':
case 'c':
pCalc->PutKey(LWK_C);
break;
case 'E':
case 'e':
pCalc->PutKey(LWK_CE);
break;
case 'D':
case 'd':
pCalc->PutKey(LWK_D);
break;
default:
cout << "输入有非法字符！" << endl;
bException = true;
break;
}
strExpression++;
}
if ( !bException ) //没有异常产生就进行输出
{
pCalc->QueryResult(&lResult); //获取计算结果
cout << i + 1 << ". "
<< str[i] << lResult << endl;
}
pCalc->Release();
}
exit:
CoUninitialize();
getchar();
return 0;
}
int main(int argc, char* argv[])
{
if( argc != 2 ) //保证只接受一个表达式
{
cout << "参数不正确，只接受一个参数\n"
<< "请按照如下格式进行输入：\n"
<< "LWCTool.exe 19+8-7*12/25= ";
return 0;
}
HRESULT Error = S_OK;
Error = CoInitialize(NULL); //初始化COM库
if ( FAILED(Error) )
{
cout << "初始化COM库失败!" <<endl;
goto exit;
}
ICalculator* pCalc = NULL;
Error = CoCreateInstance(
CLSID_Calculator,
NULL,
CLSCTX_INPROC_SERVER,
IID_ICalculator,
reinterpret_cast<void**>(&pCalc)
);
if ( FAILED(Error) )
{
cout << "创建组件失败!" <<endl;
goto exit;
}
char* strExpression = NULL;
strExpression = argv[1]; //保存表达式的值
//开始处理表达式,调用接口ICalculator进行计算
while (*strExpression != '\0')
{
switch ( *strExpression )
{
case '0':
Error = pCalc->PutKey(LWK_0);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '1':
Error = pCalc->PutKey(LWK_1);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '2':
Error = pCalc->PutKey(LWK_2);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '3':
Error = pCalc->PutKey(LWK_3);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '4':
Error = pCalc->PutKey(LWK_4);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '5':
Error = pCalc->PutKey(LWK_5);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '6':
Error = pCalc->PutKey(LWK_6);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '7':
Error = pCalc->PutKey(LWK_7);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '8':
Error = pCalc->PutKey(LWK_8);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '9':
Error = pCalc->PutKey(LWK_9);
if (FAILED(Error))
{
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '+':
Error = pCalc->PutKey(LWK_ADD);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
goto exit;
}
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '-':
Error = pCalc->PutKey(LWK_SUB);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
goto exit;
}
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '*':
Error = pCalc->PutKey(LWK_MUL);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
goto exit;
}
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '/':
Error = pCalc->PutKey(LWK_DIV);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
goto exit;
}
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '=':
Error = pCalc->PutKey(LWK_EQU);
if (FAILED(Error))
{
if ( Error == DIV_ZERO )
{
cout << "除数不能为零！" << endl;
goto exit;
}
cout << "数据越界，范围-65536至65535" << endl;
goto exit;
}
break;
case '!':
pCalc->PutKey(LWK_REV);
break;
case 'C':
case 'c':
pCalc->PutKey(LWK_C);
break;
case 'E':
case 'e':
pCalc->PutKey(LWK_CE);
break;
case 'D':
case 'd':
pCalc->PutKey(LWK_D);
break;
default:
cout << "输入有非法字符！" << endl;
goto exit;
}
strExpression++;
}
long lResult = 0;
pCalc->QueryResult(&lResult); //获取计算结果
pCalc->Release();
cout << argv[1]
<< lResult
<< "\n按任意键结束";
exit:
CoUninitialize();
getchar();
return 0;
}