第六次课程作业

第六次课程作业

要求1：学习C++界面编程，可以学QT、MFC或者VS，选择其一即可，用博客记录学习到的知识以及心得体会。

本来要去学MFC，结果安装MFC的时候出了点事故把vs搞崩了，害我换了个编译器，后来我去看了QT，感觉还行，但时间很赶，没学到什么。
附上QT的helloword：

要求2：用栈改进算法

这是我改后的代码：

double Mycount::calculateResult(double random1,double random2,double random3,double random4,int sign1,int sign2,int sign3){
    double r1[6],r2[6],r[6]={random1,random2,random3,random4};
    int rlen1=0,rlen2=0,s1[5],s2[5],slen1=0,slen2=0,s[5]={sign1,sign2,sign3};
    r1[rlen1++]=r[0];
    for(int i=0;i<3;i++){
    	r1[rlen1++]=r[i+1];
    	if(s[i]>=4){rlen1-=2;r1[rlen1]=qcount(r1[rlen1],r1[rlen1+1] ,s[i]);rlen1++;}
    	else s1[slen1++]=s[i];}
    r2[rlen2++]=r1[0];
    for(int i=0;i<slen1;i++){
    	r2[rlen2++]=r1[i+1];
    	if(s1[i]>=2){rlen2-=2;r2[rlen2]=qcount(r2[rlen2], r2[rlen2+1], s1[i]);rlen2++;}
    	else s2[slen2++]=s1[i];}
    for(int i=0;i<slen2;i++){
    	r2[i+1]=qcount(r2[i], r2[i+1], s2[i]);}
	return r2[slen2];
}

下面是刚开始的：

double Mycount::calculateResult(double random1,double random2,double random3,double random4,int sign1,int sign2,int sign3){
	double count1,count2,count3,result;
    if(sign1>3){count1=qcount(random1,random2,sign1);
    if(sign2>3){count2=qcount(count1,random3,sign2);result=qcount(count2,random4,sign3);}
    else{if(sign3>3){result=qcount(count1,qcount(random3,random4,sign3),sign2);}
    else{if(sign2>1){result=qcount(qcount(count1,random3,sign2),random4,sign3);}
    else{if(sign3>1){result=qcount(count1,qcount(random3,random4,sign3),sign2);}
    else{result=qcount(qcount(count1,random3,sign2),random4,sign3);}}}}
    }else{if(sign2>3){count2=qcount(random2,random3,sign2);
    if(sign3>3){result=qcount(random1,qcount(count2,random4,sign3),sign1);}
    else{if(sign1>1){result=qcount(qcount(random1,count2,sign1),random4,sign3);}
    else{if(sign3>1){result=qcount(random1,qcount(count2,random4,sign3),sign1);}
    else{result=qcount(qcount(random1,count2,sign1),random4,sign3);}}}
    }else{if(sign3>3){count3=qcount(random3,random4,sign3);
    if(sign1>1){result=qcount(qcount(random1,random2,sign1),count3,sign2);}
    else{if(sign2>1){result=qcount(random1,qcount(random2,count3,sign2),sign1);}
    else{result=qcount(qcount(random1,random2,sign1),count3,sign2);}}
    }else{
    //无括号运算（大于三代表存在括号的运算）
    if(sign1>1){
    count1=qcount(random1,random2,sign1);
    if(sign2>1)result=qcount(qcount(count1,random3,sign2),random4,sign3);
    else{
    if(sign3>1) {
    count3=qcount(random3,random4,sign3);
    result=qcount(count1,count3,sign2);
    }else {
    result=qcount(qcount(count1,random3,sign2),random4,sign3);
    }}
    }else{
    if(sign2>1){count2=qcount(random2,random3,sign2);
    if(sign3>1){
    result=qcount(random1,qcount(count2,random4,sign3),sign1);}
    else{result=qcount(qcount(random1,count2,sign1),random4,sign3);}}
    else{if(sign3>1){count3=qcount(random3,random4,sign3);result=qcount(qcount(random1,random2,sign1),count3,sign2);
    }else{count1=qcount(random1,random2,sign1);result=qcount(qcount(count1,random3,sign2),random4,sign3);}}}}}}
    return result;
}

用了很多个if else。看了头就晕，那时候的我竟然有毅力把它写下来，厉害了我的哥。

感想：

作业有点赶，没有学好或没有写好的地方，我后面会花些时间补。