MFC選修 計(jì)算器實(shí)驗(yàn)報(bào)告

六、源程序清單、測(cè)試數(shù)據(jù)、結(jié)果主要代碼：//1-9與0的消息響應(yīng)函數(shù)相同，如下：voidCCaculatorDlg::OnButton0(){ //TODO:Addyourcontrolnotificationhandlercodehere m_StrBegin=m_StrBegin+"0"; if(!m_IsCheckPoint) m_DspEdit.OnDisplay(m_StrBegin+"."); else m_DspEdit.OnDisplay(m_StrBegin);}//清除顯示框中內(nèi)容voidCCaculatorDlg::OnButtonClr(){ //TODO:Addyourcontrolnotificationhandlercodehere m_IsCheckPoint=false; m_StrBegin=""; m_begin=0.0; m_end=0.0; m_bit=0; m_DspEdit.OnDisplay("0."); }//實(shí)現(xiàn)“+”運(yùn)算，“-、*、/、平方、開方”等運(yùn)算的消息函數(shù)大體相同voidCCaculatorDlg::OnButtonPlus(){ //TODO:Addyourcontrolnotificationhandlercodehere Result(); m_bit=1;}//核心函數(shù)：實(shí)現(xiàn)按鈕到顯示功能的中間計(jì)算過(guò)程VoidCCaculatorDlg::Result()//用來(lái)處理按下符號(hào)鍵時(shí)的函數(shù)，是計(jì)算的核心函數(shù){m_IsCheckPoint=false; m_begin=atof(m_StrBegin);//將字符串轉(zhuǎn)化為浮點(diǎn)數(shù)，確保精度 switch(m_bit) { case1: //處理+號(hào) m_end+=m_begin; break; case2: //處理-號(hào) m_end-=m_begin; break; case3: //處理*號(hào)，即乘法 m_end*=m_begin; break; case4: //處理/號(hào)，即除法 if(m_begin==0) { m_DspEdit.OnDisplay("除數(shù)不能為零！"); return; } m_end/=m_begin; break; case5: //處理sqrt號(hào)，即開方 if(m_end<0) { m_DspEdit.OnDisplay("函數(shù)輸入無(wú)效！"); return; } m_end=sqrt(m_end); break; case6: //處理1/x號(hào)，即求倒數(shù) m_end=1/m_end; case7: //處理=號(hào) break; case8: //處理sin號(hào) m_end=sin(m_end); break; case9: //處理cos號(hào) m_end=cos(m_end); break; case10: //處理tan號(hào) m_end=tan(m_end); break; case11: //處理x^2號(hào)，即平方 m_end=m_end*m_end; break; case12: //處理x^3號(hào)，即立方 m_end=m_end*m_end*m_end; break; case13: //處理x^y號(hào)，即求x的y次方 m_end=pow(m_end,m_begin); break; case14: //處理Exp號(hào)，即求e的x次方 m_end=exp(m_end); break; case15: //處理ln號(hào) if(m_end<=0) { m_DspEdit.OnDisplay("函數(shù)輸入無(wú)效！"); return; } m_end=log(m_end); break; case16: //處理log號(hào) if(m_end<=0) { m_DspEdit.OnDisplay("函數(shù)輸入無(wú)效！"); return; } m_end=log10(m_end); break; default: // m_end=m_begin; break; } m_begin=0.0; m_bit=0; m_StrBegin=""; inti=sprintf(m_buffer,"%10.12f",m_end);//將結(jié)果轉(zhuǎn)換為字符串 TrimZero(m_buffer,i);//去掉字符串尾部多余的零 m_DspEdit.OnDisplay(m_buffer);}//實(shí)現(xiàn)簡(jiǎn)單和擴(kuò)展計(jì)算器的切換功能voidCCaculatorDlg::OnExtend(){//功能拓展按鈕 //TODO:Addyourcommandhandlercodehere CRectrect; if(!m_IsExtend) { SetWindowPos(&wndTop,0,0,oldrect.Width(),oldrect.Height(),SWP_NOMOVE|SWP_NOZORDER); m_DspEdit.GetWindowRect(&rect); m_DspEdit.SetWindowPos(NULL,rect.left,rect.top,361,rect.Height(),SWP_NOMOVE|SWP_NOZORDER); m_DspStatic.GetWindowRect(&rect); m_DspStatic.SetWindowPos(NULL,rect.left,rect.top,381,rect.Height(),SWP_NOMOVE|SWP_NOZORDER); m_Menu->ModifyMenu(ID_EXTEND,MF_BYCOMMAND|MF_STRING,ID_EXTEND,"標(biāo)準(zhǔn)"); m_IsExtend=TRUE; } else { SetWindowPos(&wndTop,0,0,newrect.Width(),newrect.Height(),SWP_NOMOVE|SWP_NOZORDER); m_DspEdit.GetWindowRect(&rect); m_DspEdit.SetWindowPos(NULL,rect.left,rect.top,182,rect.Height(),SWP_NOMOVE|SWP_NOZORDER); m_DspStatic.GetWindowRect(&rect); m_DspStatic.SetWindowPos(NULL,rect.left,rect.top,202,rect.Height(),SWP_NOMOVE|SWP_NOZORDER); m_Menu->ModifyMenu(ID_EXTEND,MF_BYCOMMAND|MF_STRING,ID_EXTEND,"擴(kuò)展"); m_IsExtend=FALSE; }}voidCCaculatorDlg::OnButtonDot(){//小數(shù)點(diǎn)的處理 //TODO:Addyourcontrolnotificationh