dosconter.txt

可以在XP下运行并且实现计算 可以进行数学测验等功能

#include<iomanip> 
#include<iostream> 
#include<cmath> 
#include<ctime> 
#include<conio.h> 
using namespace std; 
////////////////////////////////////// 
struct Jade{ 
int state; 
char data; 
Jade * next; 
}; 
////////////////////////////////////// 
class Needle{ 
Jade * head,*tail;int bit; 
public: 
Needle(){Set();} 
void Set(){bit=0;} 
void Start(void){ //生成头结点 
head=new Jade; 
tail=head; 
tail->state=0; 
} 
void Create(char x){ //生成新节点，并将字符X放在该节点中 
Jade * temp=new Jade; 
temp->data=x; 
temp->next=0; 
if((int)x<48){ 
if(x!='.')temp->state=1; 
else temp->state=0; 
} 
else temp->state=0; 
tail->next=temp; 
tail=temp; 
++bit; 
} 
void Charge(void){ //获得输入的字符并存入链表 
char wmA; 
Start(); 
while(cin.get(wmA)&&(int)wmA!=10) 
{ 
if((int)wmA<39||(int)wmA==44||(int)wmA>57) 
continue; 
else Create(wmA); 
} 
} 
void show(){ //输出存储的计算式 
Jade *p=head; 
do{ 
p=p->next; 
cout<<p->data; 
}while(p->next); 

} 
Jade * Share(){ //共享链表头指针； 
return head; 
} 
int Check(){ //检查是否有0作为除数 
if(bit==0)return 0; 
Jade *king=head; 
while(king->next){ 
if(king->data=='/'&&king->next->data=='0')return 0; 
king=king->next; 
} 
return 1; 
} 
~Needle(){ 
if(bit==0) exit(0); 
Jade * p; 
while(head){ 
p=head; 
head=head->next; 
delete p; 
} 
} 
}; 
/////////////////////////////////////////////// 
struct Ball{ 
int feel; 
double data; 
char word; 
Ball * qian,* hou; 
}; 
/////////////////////////////////////////////// 
class Think{ 
Ball * bhead,* btail; 
Jade * old;int rec; 
public: 
Think(){rec=0;} 
void Check(){ //检查计算式中的除法运算是否可除尽，有着将除数变成可除尽的 
Ball * xing=bhead->hou;int w; 
while(xing->word!='e'){ 
if(xing->qian->word=='/'){ //寻找除号,调整除数与被除数 
if(xing->qian->qian->data<xing->data){ 
w=xing->qian->qian->data; 
xing->qian->qian->data=xing->data; 
xing->data=w; 
} 
if((int)xing->qian->qian->data%(int)xing->data) //调整使之可以除尽 
xing->qian->qian->data-=(int)xing->qian->qian->data%(int)xing->data; 
} 
xing=xing->hou; 
} 
} 
void Enjoy(Jade * x){ //获得头指针 
old=x; 
} 
void Start(){ //生成头结点 
bhead=new Ball; 
bhead->feel=0; 
bhead->data=0; 
bhead->word='s'; 
btail=bhead; 

} 
void Create(double x){ //生成新节点并将double存入节点 
Ball * p=new Ball; 
p->feel=0; 
btail->hou=p; 
p->qian=btail; 
p->hou=0; 
p->data=x; 
p->word=0; 
btail=p; 
} 
void Create(char x){ //生成新节点并将char存入节点 
Ball * p=new Ball; 
p->feel=1; 
btail->hou=p; 
p->qian=btail; 
p->hou=0; 
p->word=x; 
p->data=0; 
p->feel=1; 
btail=p; 
++rec; 
} 
double Shu(){ //从由Jade组成的链表中提取数字 
double ll=0.000000;Jade * r;int point=0; 
while(old->state==0){ 
if(old->data=='.'){ //检测小数点 
point=1; 
r=old; 
old=old->next;if(old==0)break; 
continue; 
} 
if(point==0){ 
ll=10*ll+old->data-48; 
r=old; 
old=old->next;if(old==0)break; 
} 
if(point){ 
double x=1.00000; 
for(int zz=point;zz>0;zz--)x*=10.00000; 
point++; 
ll=ll+(old->data-48)/x; 
r=old; 
old=old->next;if(old==0)break; 
} 
if(old==0)break; 
} 
old=r; 

return ll; 
} 
void End(){ //生成尾节点 
bhead->hou->qian=bhead; 
btail->hou=new Ball; 
btail->hou->qian=btail; 
btail->hou->feel=0; 
btail->hou->word='e'; 
btail->hou->data=0; 
} 
void Translate(){ //将Jade组成的字符链表翻译成由Ball组成的链表 
Start(); 
do{ 
old=old->next; 
if(old->state)Create(old->data); 
else Create(Shu()); 
}while(old->next); 
End(); 

} 
void Szys(Ball * at){ //用于四则运算的函数 
double a,b;char ww; 
at->feel=0; 
a=at->qian->data; 
b=at->hou->data; 
ww=at->word; 
if(at->qian->qian==0&&at->hou->hou==0){ //sA*Be类型的处理 
delete at->qian; 
delete at->hou; 
bhead->hou->hou=at; 
at->hou=0; 
goto wee; 
} 
if(at->qian->qian==0&&at->hou->hou){ //sA*B...e类型的处理 
Ball * p1=at->hou; 
bhead->hou->hou=at; 
delete at->qian; 
at->hou->hou->qian=at->hou->qian; 
at->hou=at->hou->hou; 
delete p1; 
goto wee; 
} 
if(at->qian->qian&&at->hou->hou==0){ //s...A*Be类型的处理 
Ball * p2=at->qian; 
at->qian->qian->hou=at->qian->hou; 
at->qian=at->qian->qian; 
delete p2; 
goto wee; 
} 

if(at->qian->qian&&at->hou->hou){ //s...A*B...e类型的处理 
Ball * p1=at->qian; 
Ball * p2=at->hou; 
at->qian->qian->hou=at->qian->hou; 
at->qian=at->qian->qian; 
at->hou->hou->qian=at->hou->qian; 
at->hou=at->hou->hou; 
delete p1; 
delete p2; 
goto wee; 
} 
wee: switch(ww){ 
case '+':at->data=a+b;at->word=0;break; 
case '-':at->data=a-b;at->word=0;break; 
case '*':at->data=a*b;at->word=0;break; 
case '/':at->data=a/b;at->word=0;break; 
} 

} 
void AnA(Ball * at){ //用于去除括号 
Ball * p1=at->qian,* p2=at->hou; 
at->qian->qian->hou=at->qian->hou; 
at->qian=at->qian->qian; 
at->hou->hou->qian=at->hou->qian; 
at->hou=at->hou->hou; 
delete p1; 
delete p2; 

} 
int Seek(){ //检验链表中是否包含运算符 
Ball * x=bhead; 
while(x->hou->word!='e'){ 
if(x->feel>0)return (1); 
x=x->hou; 
} 
return 0; 
} 
void Find(){ //检索各个运算符的位置并交与Szys()处理 
Ball * io=bhead,* temple; 
do{ 
io=io->hou; 
if((io->qian->word=='s'||io->qian->word=='(')&&io->word=='-'&&io->hou->feel==0){ //如果+ - 挨着( )则不予理会 
temple=io->hou; 
io->feel=0;io->data=io->hou->data*(-1);io->word=0; 
io->hou->hou->qian=io->hou->qian; 
io->hou=io->hou->hou; 
delete temple; 
} 
}while(io->word!='e'); 
io=bhead; 
do{ 
io=io->hou; 
if(io->qian&&io->qian->feel==0&&io->word=='/'&&io->hou&&io->hou->feel==0)Szys(io);//检索除法 
}while(io->hou->word!='e'); 
io=bhead; 
do{ 
io=io->hou; 
if(io->qian&&io->qian->feel==0&&io->word=='*'&&io->hou&&io->hou->feel==0)Szys(io);//检索乘法 
}while(io->hou->word!='e'); 
io=bhead; 
do{ 
io=io->hou; 
if(io->qian&&io->qian->word==0&&io->word=='-'&&io->hou&&io->hou->feel==0){ //检索加法 
if(io->qian->qian->word=='s'){Szys(io);break;} 
if(io->hou->hou->word=='e'){Szys(io);break;} 
if(io->qian->qian->qian&&io->qian->qian->qian->word==')')continue; 
if(io->hou->hou->hou&&io->hou->hou->hou->word=='(')continue; 
Szys(io); 
} 
}while(io->hou->word!='e'); 
io=bhead; 
do{ 
io=io->hou; //检验减法 
if(io->qian->word==0&&io->word=='+'&&io->hou->feel==0){ 
if(io->qian->qian->word=='s'){Szys(io);break;} 
if(io->hou->hou->word=='e'){Szys(io);break;} 
if(io->qian->qian->qian&&io->qian->qian->qian->word==')')continue; 
if(io->hou->hou->hou&&io->hou->hou->hou->word=='(')continue; 
Szys(io); 
} 
}while(io->hou->word!='e'); 
io=bhead; 
do{ //最后脱括号 
io=io->hou; 
if(io->qian->word=='('&&io->feel==0&&io->hou->word==')')AnA(io); 
}while(io->hou->word!='e'); 

} 
void Explorer(){ //以循环不断运算，脱括号，直到又剩下结果 
while(Seek()){ 
Find(); 
rec--; 
if(rec<0){ //循环次数若超过运算符的个数，则必然有无 
cout<<endl<<"该算式有问题"<<endl; 
goto wrong; 
} 
} 
cout<<setprecision(17)<<"="<<bhead->hou->data<<endl; 
wrong: cout<<endl; 
} 
int Explorer(int x){ //对Explorer的重载 
while(Seek())Find(); 
return bhead->hou->data; 
} 
void Ask(){ //遍历输出算式 
Ball * ask=bhead->hou; 
while(ask->word!='e'){ 

if(ask->feel)cout<<ask->word; 
else cout<<ask->data; 
ask=ask->hou; 
} 
} 
}; 
/////////////////////////////////////////////// 
class Tears{ //界面类，以下没必要注释 
char light; 
public: 
void Face(){ 
cout<<'\4'<<" "<<"实 数 计 算 器"<<" "<<'\4'<<endl; 
cout<<"------------------------"<<endl; 
cout<<'\4'<<" "<<"正式版本"<<" "<<'\4'<<endl; 
cout<<"------------------------"<<endl; 
cout<<'\1'<<" "<<1<<" "<<"实数混合运算"<<" "<<'\1'<<endl; 
cout<<'\2'<<" "<<2<<" "<<"开平方运算"<<" "<<'\2'<<endl; 
cout<<'\3'<<" "<<3<<" "<<"温度转换"<<" "<<'\3'<<endl; 
cout<<'\4'<<" "<<4<<" "<<"算术测试"<<" "<<'\4'<<endl; 
cout<<'\5'<<" "<<5<<" "<<"关于本计算器"<<" "<<'\5'<<endl; 
cout<<"------------------------"<<endl; 
cout<<'\4'<<" "<<"其它任意键退出"<<" "<<'\4'<<endl<<endl; 
light=getch(); 
switch(light){ 
case '1': DropDown();break; 
case '2': Salty();break; 
case '3': Translate();break; 
case '4': Kiss();break; 
case '5': Details();break; 
default:exit(0); 
} 



} 
void DropDown(){ 

Needle ass; 
big: cout<<'\4'<<" "<<"输入您的计算式"<<" "<<'\4'<<endl; 
ass.Charge(); 
Think me; 
if(ass.Check())me.Enjoy(ass.Share()); 
else{ 
cout<<"没有检测到算式或者存在0为除数，请重新输入算式:"<<endl; 
ass.Set(); 
goto big; 
} 
me.Translate(); 
ass.show(); 
me.Explorer();ass.Set(); 
cout<<'\3'<<" 1 继续计算 "<<'\3'<<endl; 
cout<<'\4'<<" 2 返回目录 "<<'\4'<<endl; 
cout<<'\5'<<" 3 退出程序 "<<'\5'<<endl; 
light=getch(); 
switch(light){ 
case '1':goto big;break; 
case '3':exit(0);break; 
default:system("cls");Face();break; 
} 
} 
void Salty(){ 
float num,x=1,tmp; 
large: cout<<'\5'<<" 输入要开平方的数字"<<endl; 
cin>>num; 
if(num<0){cout<<'\2'<<" 被开放数不能为负! "<<'\2'<<endl<<endl;goto large;} 
do 
{ 
tmp=x; 
x=(x+num/x)/2; 
}while(fabs(x-tmp)>=1e-10); 
cout<<"sqr("<<num<<")="<<' '<<x<<endl<<endl; 
cout<<'\3'<<" 1 继续计算 "<<'\3'<<endl; 
cout<<'\4'<<" 2 返回目录 "<<'\4'<<endl; 
cout<<'\5'<<" 3 退出程序 "<<'\5'<<endl; 
light=getch(); 
switch(light){ 
case '1':goto large;break; 
case '3':exit(0);break; 
default:system("cls");Face();break; 
} 

} 
void Translate(){ 
tiny: cout<<1<<" 从摄氏度转化到华氏温度"<<endl<<2<<" 从华氏温度转化到摄氏度"<<endl<<endl; 
char aa;aa=getch(); 
switch(aa){ 
case '1':double a;cout<<'\1'<<" 摄氏度:";cin>>a;cout<<'\1'<<" 转换后为:"<<a*9/5+32<<endl;break; 
case '2':double b;cout<<'\2'<<" 华氏温度:";cin>>b;cout<<'\2'<<" 转换后为:"<<(b-32)*5/9<<endl<<endl;break; 
default:cout<<"没有该选项"<<endl; 
} 
cout<<'\3'<<" 1 继续计算 "<<'\3'<<endl; 
cout<<'\4'<<" 2 返回目录 "<<'\4'<<endl; 
cout<<'\5'<<" 3 退出程序 "<<'\5'<<endl; 
light=getch(); 
switch(light){ 
case '1':goto tiny;break; 
case '3':exit(0);break; 
default:system("cls");Face();break; 
} 

} 
void Kiss(){ 
srand((unsigned)time( NULL )); 
Think you; int line=0,chu=0,cheng=0,xu=1; 
super: for(int i=1;i<11;i++){ //产生随机算式 
you.Start(); 
for(int i=rand()%3;i<3;i++){ 
float a=1+rand()%20;you.Create(a); 
while(1){ 
char j=42+rand()%6; 
if(j==44||j==46)continue; 
if(j==47&&chu){++chu;continue;} 
if(j==42&&cheng){++cheng;continue;} 
you.Create(j);break; 
} 
} 
float a=1+rand()%20;you.Create(a); 
you.End(); 
you.Check();cout<<'\3'<<" 第 "<<xu<<" 题 "<<'\3'<<endl<<" "; 
you.Ask(); 
cout<<"结果是多少?"<<endl; 
int ans;cout<<" ";cin>>ans; 

if(ans==you.Explorer(1)){ 
cout<<'\2'<<" 好 棒 哦 ! "<<'\2'<<endl<<endl; 
line+=10; 
} 
else { 
cout<<'\3'<<" 呵呵，你没算对... "<<'\3'<<endl<<"!"<<" 正确答案"; 
you.Explorer(); 
} 
++xu; 

} 
cout<<" 你的总分为"<<line<<endl; 
cout<<'\3'<<" 1 继续计算 "<<'\3'<<endl; 
cout<<'\4'<<" 2 返回目录 "<<'\4'<<endl; 
cout<<'\5'<<" 3 退出程序 "<<'\5'<<endl; 
light=getch(); 
switch(light){ 
case '1':goto super;break; 
case '3':exit(0);break; 
default:system("cls");Face();break; 
} 
} 
void Details(){ 
cout<<'\1'<<" 本计算器采用链表存 "<<'\1'<<endl; 
cout<<'\2'<<" 储并分析四则运算式， "<<'\2'<<endl; 
cout<<'\3'<<" 支持 + - * / ( ) 运算"<<'\3'<<endl; 
cout<<'\4'<<" 符，可用于实数运算。 "<<'\4'<<endl; 
cout<<'\5'<<" 算式测试随机生成， "<<'\5'<<endl; 
cout<<'\6'<<" 另外两个模块很简单， "<<'\6'<<endl; 
cout<<'\1'<<" 就不多说了。 "<<'\1'<<endl; 
cout<<'\2'<<" 注意开平方与温度转 "<<'\2'<<endl; 
cout<<'\3'<<" 换模块没有使用过滤， "<<'\3'<<endl; 
cout<<'\4'<<" 请不要输入字符。 "<<'\4'<<endl; 
cout<<'\5'<<" 唉，懒得再写过滤， "<<'\5'<<endl; 
cout<<'\6'<<" 就这样先吧。 "<<'\6'<<endl; 
cout<<'\2'<<" 1 返回目录 "<<'\2'<<endl; 
cout<<'\3'<<" 2 退出程序 "<<'\3'<<endl; 
light=getch(); 
switch(light){ 
case '2':exit(0);break; 
default:system("cls");Face();break; 
} 

} 

}; 
/////////////////////////////////////////////// 
int main(){ 
Tears tear;tear.Face();return 0; 
}