留学生简历自我评价怎么写
速求 数据结构C++学生成绩管理原代码
#include<iostream.h> #include<string.h> #include<fstream.h> class stu { char name[20]; double math,chinese,english,average,sum; public: stu() { } stu(char n[20],double ma,double chin,double eng) { strcpy(name,n); math=ma; chinese=chin; english=eng; } double getsum() { sum=chinese+english+math; return sum; } double getaver() { average=getsum()/3; return average; } friend void main(); }; void main() { cout<<"请选择您需要的操作！"<<endl; cout<<"操作："<<endl; cout<<"(0)数据录入"<<endl; cout<<"(1)增加人员"<<endl; cout<<"(2)删除人员"<<endl; cout<<"(3)修改数据"<<endl; cout<<"查询："<<endl; cout<<"(4)按总成绩查询"<<endl; cout<<"(5)按姓名查询"<<endl; cout<<"(6)输出所有学生的数据"<<endl; cout<<"成绩名词"<<endl; cout<<"(7)按总分查询排名"<<endl; cout<<"(8)按语文查询排名"<<endl; cout<<"(9)按数学查询排名"<<endl; cout<<"(y)按英语查询排名"<<endl; cout<<"选择相关操作请输入相对的括号里的阿拉伯数字！"<<endl; char p;char w; stu *s[50]; ofstream *file[50]; int i=0; int j=0; bool flag2=0; do { cin>>p; if((p>='0'&&p<='10')) flag2=1; else cout<<"指令错误！请重新输入："<<endl; }while(flag2==0); do{ switch(p) { case '0': { char c; char name[20];double math,chinese,english; do{ cout<<"请输入姓名"<<endl; cin>>name; cout<<"请输入数学成绩："<<endl; cin>>math; cout<<"请输入语文成绩："<<endl; cin>>chinese; cout<<"请输入外语成绩："<<endl; cin>>english; file[j]=new ofstream("d:\\document",ios::ate); *file[j]<<"姓名"<<name<<"数学成绩"<<math<<"语文成绩"<<chinese<<"外语成绩"<<english<<endl; j++; s[i]=new stu(name, math, chinese, english); i++; cout<<"数据录入成功，想继续录入吗(y/n)"<<endl; cin>>c; flag2=0; do { if(c!='y'&&c!='n') { cout<<"指令错误！请重新输入！"<<endl; cin>>c; } else flag2=1; }while(flag2==0); }while(c=='y'); break; } case '4': { double t;char c; do { int flag1=0; cout<<"请输入你要查询学生的总成绩"<<endl; cin>>t; for(int q=0;q<i;q++) { if(s[q]->getsum()==t) { flag1=1; cout<<"您要查询的学生是："<<(*s[q]).name<<endl; } } if(flag1==0) cout<<"对不起！您要查询的学生不存在！"<<endl; cout<<"您想继续查询吗?(y/n)"<<endl; cin>>c; if(c!='y'&&c!='n') { cout<<"指令错误！请重新输入！"<<endl; cin>>c; } } while(c=='y'); break; } case '5': { char n[20];int j=0;char c; do{ int flag=0; cout<<"请输入你要查询的学生姓名"<<endl; cin>>n; for(int j=0;j<i;j++) { if(strcmp(n,(*s[j]).name)==0) { flag=1; cout<<"您要查询的学生是："<<(*s[j]).name<<endl; cout<<(*s[j]).name<<"的总成绩成绩是"<<(*s[j]).getsum()<<endl<<"平均成绩是："<<(*s[j]).getaver()<<endl; } } if(flag==0) cout<<"对不起!您要查询的学生不存在!"<<endl; cout<<"您想继续查询吗?(y/n)"<<endl; cin>>c; if(c!='y'&&c!='n') { cout<<"指令错误！请重新输入！"<<endl; cin>>c; } } while(c=='y'); break; } case '1': { char name[20];double math,chinese,english; char c; do { cout<<"请输入您要增加的学生的姓名："<<endl; cin>>name; cout<<"请输入数学成绩："<<endl; cin>>math; cout<<"请输入语文成绩："<<endl; cin>>chinese; cout<<"请输入外语成绩："<<endl; cin>>english; file[j]=new ofstream("d:\\document",ios::ate); *file[j]<<"姓名"<<name<<"数学成绩"<<math<<"语文成绩"<<chinese<<"外语成绩"<<english<<endl; j++; s[i]=new stu(name, math, chinese, english); i++; cout<<"数据录入成功，想继续录入吗(y/n)"<<endl; cin>>c; if(c!='y'&&c!='n') { cout<<"指令错误！请重新输入！"<<endl; cin>>c; } }while(c=='y'); break; } case '2': { char name[20];bool flag3=0;char c; do{ cout<<"请输入您要删除的学生姓名："<<endl; cin>>name; for(int h=0;h<i;h++) { if(strcmp(name,s[h]->name)==0) { flag3=1; i--; do{ s[h]=s[h+1]; h++; }while(h<=i); } } if(flag3==0) cout<<"您要求删除的对象本来就不存在！请检查输入的正确性！"; cout<<"要继续删除吗？(y/n)"<<endl; cin>>c; if(c!='y'&&c!='n') { cout<<"指令错误！请重新输入！"<<endl; cin>>c; } }while(c=='y'); break; } case '3': { char name[20];double mat,chin,eng;flag2=0; char c; do { cout<<"请输入您要修改的学生的姓名："<<endl; cin>>name; for(int h=0;h<i;h++) { if(strcmp(name,s[h]->name)==0) { flag2=1; cout<<"请输入新的数学成绩："<<endl; cin>>mat; cout<<"请输入新的语文成绩："<<endl; cin>>chin; cout<<"请输入新的外语成绩："<<endl; cin>>eng; s[h]->chinese=chin; s[h]->math=mat; s[h]->english=eng; cout<<"数据修改成功！"; } } if(flag2==0) { cout<<"您要修改的学生本来就不存在！请检查重新输入！"<<endl; } cout<<"想继续修改吗(y/n)"<<endl; cin>>c; if(c!='y'&&c!='n') { cout<<"指令错误！请重新输入！"<<endl; cin>>c; } }while(c=='y'); break; } case '6': { cout<<"本系统所有学生数据如下："<<endl; if(i==0) cout<<"管理系统中没有录入数据或者数据已经被删除！"<<endl; for(int k=0;k<i;k++) { cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<< "语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math <<"外语："<<" "<<s[k]->english<<"总分："<<" "<<(*s[k]).getsum() <<"平均分："<<" "<<(*s[k]).getaver()<<endl; } break; } case '7': { int t;stu b; cout<<"本系统所以学生排名如下："<<endl; for(int x=0;x<i-1;x++) { t=x; for(int y=x+1;y<i;y++) { if((s[t]->getsum())<(s[y]->getsum())) t=y; if(t!=x) { b=*s[x]; *s[x]=*s[t]; *s[t]=b; } } } if(i==0) cout<<"管理系统中没有录入数据或者数据已经被删除！"; for(int k=0;k<i;k++) { cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<< "语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math <<"外语："<<" "<<s[k]->english<<"总分："<<" "<<s[k]->getsum() <<"平均分："<<" "<<s[k]->getaver()<<endl; } break; } case '8': { int t;stu b; cout<<"本系统所以学生语文排名如下："<<endl; for(int x=0;x<i-1;x++) { t=x; for(int y=x+1;y<i;y++) { if((s[t]->chinese)<(s[y]->chinese)) t=y; if(t!=x) { b=*s[t]; *s[t]=*s[x]; *s[x]=b; } } } if(i==0) cout<<"管理系统中没有录入数据或者数据已经被删除！"; for(int k=0;k<i;k++) { cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<< "语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math <<"外语："<<" "<<s[k]->english<<"总分："<<" "<<s[k]->getsum() <<"平均分："<<" "<<s[k]->getaver()<<endl; } break; } case '9': { int t;stu b; cout<<"本系统所以学生数学排名如下："<<endl; for(int x=0;x<i-1;x++) { t=x; for(int y=x+1;y<i;y++) { if((s[t]->math)<(s[y]->math)) t=y; if(t!=x) { b=*s[t]; *s[t]=*s[x]; *s[x]=b; } } } if(i==0) cout<<"管理系统中没有录入数据或者数据已经被删除！"; for(int k=0;k<i;k++) { cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<< "语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math <<"外语："<<" "<<s[k]->english<<"总分："<<" "<<s[k]->getsum() <<"平均分："<<" "<<s[k]->getaver()<<endl; } break; } case 'y': { int t;stu b; cout<<"本系统所以学生英语排名如下："<<endl; for(int x=0;x<i-1;x++) { t=x; for(int y=x+1;y<i;y++) { if((s[t]->english)<(s[y]->english)) t=y; if(t!=x) { b=*s[t]; *s[t]=*s[x]; *s[x]=b; } } } if(i==0) cout<<"管理系统中没有录入数据或者数据已经被删除！"; for(int k=0;k<i;k++) { cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<< "语文："<<" "<<s[k]->chinese<<"数学："<<" "<<s[k]->math <<"外语："<<" "<<s[k]->english<<"总分："<<" "<<s[k]->getsum() <<"平均分："<<" "<<s[k]->getaver()<<endl; } } break; } cout<<"您想继续进行其他操作吗?(y/n)"<<endl; bool flag4=0; do { cin>>w; if(w!='y'&&w!='n') cout<<"指令错误！请重新输入！"<<endl; else flag4=1; }while(flag4==0); if(w=='y') cout<<"请输入操作代码(0 录入/4 按总分查询/5 按姓名查询/1 增加人员/2 删除人员/3 修改数据/6 显示所有成员数据/7 按总分排名/8 按语文排名/9按数学排名/y按英语排名)"<<endl; cin>>p; }while(w=='y'); for(int x=0;x<i;x++) { delete s[x]; cout<<"delete all members!"<<endl; } }
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