C++结构体数组详细解析

struct Student{
     int num;
     char name[20];
     char sex[5];
     int age;
     float score;
     char addr[30];
};
Student stu[3]; //定义Student类型的数组stu

#include<iostream>
using namespace std;
struct Person{
    char name[20];                       //姓名
    int count;                           //票数计数器
};
int main(){
    Person leader[3]={"Tom",0,"Neo",0,"Marry",0};
                                        //定义Person类型的数组，内容为3个候选人的姓名和票数
    int i,j,k=0;
    bool tag;
    cout<<"please input the name of the leader : Tom Neo Marry\n\n";
    char leadername[20];                //该数组为每次输入的候选人的名字
    for(i=0;i<10;i++){                   //循环输入这10个人选的候选人的名字
        cout<<"input name "<<i+1<<" :";
        cin>>leadername;
        tag=1;
        for(j=0;j<3;j++){
            if(strcmp(leadername,leader[j].name)==0){
                leader[j].count++;
                tag=0;
            }
        }
        if(tag==1)k++;
    }
    cout<<endl;
    for(i=0;i<3;i++){
       cout<<leader[i].name<<":"<<leader[i].count<<endl;    
    }  
    cout<<"Abandoned tickets:"<<k<<endl;
    return 0;
}

#include<iostream>
#include<string>
using namespace std;
int main(){
 char *name[3]={"Tom","Neo","Marry"};
 int    count[3]={0,0,0};
 int    i,j,k=0;
 bool tag=1;
 cout<<"please input the name of the leader : Tom Neo Marry\n\n";
 char leadername[20];               
 for(i=0;i<10;i++){                
  cout<<"input name "<<i+1<<" :";
  cin>>leadername;
  for(j=0;j<3;j++){
   if(strcmp(leadername,name[j])==0){
    count[j]++;
    tag=0;
   }
  }
  if(tag==1)k++;
  tag=1;
 }
 cout<<endl;
 for(i=0;i<3;i++){
    cout<<name[i]<<":"<<count[i]<<endl; 
 }
 cout<<"Abandoned tickets:"<<k<<endl;
 return 0;
}

#include<iostream>
#include<string>
using namespace std;
int main(){
 string name[3]={"Tom","Neo","Marry"};
 int    count[3]={0,0,0};
 int    i,j,k=0;
 bool tag=1;
 cout<<"please input the name of the leader : Tom Neo Marry\n\n";
 string leadername;               
 for(i=0;i<10;i++){                
  cout<<"input name "<<i+1<<" :";
  cin>>leadername;
  for(j=0;j<3;j++){
   if(leadername==name[j]){
    count[j]++;
    tag=0;
   }
  }
  if(tag==1)k++;
  tag=1;
 }
 cout<<endl;
 for(i=0;i<3;i++){
    cout<<name[i]<<":"<<count[i]<<endl; 
 }
 cout<<"Abandoned tickets:"<<k<<endl;
 return 0;
}