我正在研究一个项目，在课堂上创建一个链表，但我甚至无法开始研究它，因为每次运行该程序时它都会在我想要的时候停止工作输入数据。
有人可以告诉我如何使用类正确输入数据吗？如果可能的话请告诉我如何改进这个计划。我所做的代码很长。
我会尽量简短，让你们明白。很多人建议我使用std::string，但我们的讲师从未提及过它，所以我们不知道如何使用它。
如果我必须使用它，这意味着我必须从头开始学习它，这意味着我需要时间来真正理解它。
我们还需要有一个功能，我们可以更新存储的数据，根据其中一个数据搜索数据并为其做一个摘要。
#include <iostream>
#include <stdlib.h>
#include <cstdlib>
#include <conio.h>
#include <stdio.h>
#include <string>
using namespace std;
//CLASS USED IN PROGRAM
class carInsurance
{
private:
int total;
int customerNo;
string name;
string iCno;
char dob[10];
string nationality;
string address;
char phoneNo[15];
string email;
string occupation;
char carNo[10];
char expireDate[11];
float insuranceAmount;
char carUsage[30];
char manufacturingDate[11];
int package;
int option;
int additional;
int noCustomer[10];
public:
void add();
void presetdata();
static void deleteFunc(carInsurance noCustomer[]);
static void viewAll(carInsurance noCustomer[]);
//constructor name has to be the same as class
carInsurance(int carInsurance_total,
int carInsurance_customerNo,
string carInsurance_name,
string carInsurance_iCno,
char carInsurance_dob[10],
string carInsurance_nationality,
string carInsurance_address,
char carInsurance_phoneNo[15],
string carInsurance_email,
string carInsurance_occupation,
char carInsurance_carNo[10],
char carInsurance_expireDate[11],
float carInsurance_insuranceAmount,
char carInsurance_carUsage[30],
char carInsurance_manufacturingDate[11],
int carInsurance_package,
int carInsurance_option,
int carInsurance_additional)
{
total = carInsurance_total;
customerNo = carInsurance_customerNo;
name = carInsurance_name;
iCno = carInsurance_iCno;
dob[10] = carInsurance_dob[10];
nationality = carInsurance_nationality;
address = carInsurance_address;
phoneNo[15] = carInsurance_phoneNo[15];
email = carInsurance_email;
occupation = carInsurance_occupation;
carNo[10] = carInsurance_carNo[10];
expireDate[11] = carInsurance_expireDate[11];
insuranceAmount = carInsurance_insuranceAmount;
carUsage[30] = carInsurance_carUsage[30];
manufacturingDate[11] = carInsurance_manufacturingDate[11];
package = carInsurance_package;
option = carInsurance_option;
additional = carInsurance_additional;
} // end of constructor
carInsurance()
{ // Set all variables to null
total = 0;
customerNo = 0;
name = " ";
iCno = " ";
dob[10] = '\0';
nationality = " ";
address = " ";
phoneNo[15] = '\0';
email = " ";
occupation = " ";
carNo[10] = '\0';
expireDate[11] = '\0';
insuranceAmount = 0;
carUsage[30] = '\0';
manufacturingDate[11] = '\0';
package = 0;
option = 0;
additional = 0;
}
// SET
void setChar(char carInsurance_dob[10],
char carInsurance_phoneNo[15],
char carInsurance_carNo[10],
char carInsurance_expireDate[10],
char carInsurance_carUsage[30],
char carInsurance_manufacturingDate[10])
{dob[10] = carInsurance_dob[10];
phoneNo[15] = carInsurance_phoneNo[15];
carNo[10] = carInsurance_carNo[10];
expireDate[11] = carInsurance_expireDate[11];
carUsage[30] = carInsurance_carUsage[30];
manufacturingDate[11] = carInsurance_manufacturingDate[11];}
void setname(string carInsurance_name){name = carInsurance_name;}
void setiCno(string carInsurance_iCno){iCno = carInsurance_iCno;}
void setAddress(string carInsurance_address){address = carInsurance_address;}
void setString(string carInsurance_nationality, string carInsurance_email,string carInsurance_occupation)
{nationality = carInsurance_nationality; email = carInsurance_email; occupation = carInsurance_occupation;}
void setInt(int carInsurance_total, int carInsurance_customerNo, int carInsurance_package, int carInsurance_option, int carInsurance_additional)
{customerNo = carInsurance_customerNo; package = carInsurance_package; option = carInsurance_option; additional = carInsurance_additional;}
void setFloat (float carInsurance_insuranceAmount){insuranceAmount = carInsurance_insuranceAmount;}
// GET
string getname(){return name;}
string getiCno(){return iCno;}
string getaddress(){return address;}
string getString(){return nationality; return email; return occupation;}
int getInt(){return total; return customerNo; return package; return option; return additional;}
float getFloat(){return insuranceAmount;}
}; //end class
这是我的主要内容：
//function declaration
//to prevent overload run function outside
void add();
//THE MAIN FUNCTION OF PROGRAM
int main()
{
carInsurance obj; // obj is class object
carInsurance *noCustomer[10];
int choice;
while(choice != 4)
{
cout << "1. ADD, UPDATE, DELETE\n" << "2. SEARCH\n" << "3. VIEW ALL\n" << "4. SUMMARY REPORT\n" << "5. EXIT\n" << endl;
cout << "Enter your choice: ";
cin >> choice;
system("cls");
switch(choice)
{
case 1:
{
cout << "___________________________________\n";
cout << "\n\tADD/UPDATE/DELETE\n";
cout << "___________________________________\n";
cout << "\n1. ADD\n2. UPDATE\n3. DELETE\n" << endl;
cin >> choice;
system("cls");
switch(choice)
{
case 1:
{
int i;
int total = 0;
cout << "How many customer? ";
cin >> total;
for(i=0; i<total; ++i)
{
cout << "________________________________\n";
cout << "\n\tCUSTOMER NO. " << 1 + i;
cout << "\n________________________________\n";
noCustomer[i]->add(); // this is function call to input
}
break;
}
case 2:
{
int paymentID;
//cout << "UPDATE" << endl;
cout << "\nEnter the customer ID that you want to update:";
cin >> paymentID;
// function here
break;
}
case 3:
{
int paymentID;
//cout << "DELETE" << endl;
cout << "\nEnter the customer ID that you want to delete:";
cin >> paymentID;
noCustomer[10]->deleteFunc(noCustomer[10]);
break;
}
} // End of switch case for add,update,delete
system("cls");
break;
} // End of case 1
case 2:
{
cout << "___________________________\n";
cout << "\n\t SEARCH\n";
cout << "___________________________\n";
system("pause");
system("cls");
break;
}
case 3:
{ cout << "___________________________\n";
cout << "\n\tVIEW ALL\n";
cout << "___________________________\n";
obj.presetdata();
noCustomer[10]->viewAll(noCustomer[10]);
cout<<"\n";
system("pause");
system("cls");
break;
}
case 4:
{
cout << "___________________________\n";
cout << "\n\tSUMMARY REPORT\n";
cout << "___________________________\n\n";
cout << "1. Sorted by different month\n2. Sorted by different car type\n3. Sorted by different insurance" << endl;
cin >> choice;
switch(choice)
{
case 1:
{
break;
}
case 2:
{
break;
}
case 3:
{
break;
}
default:
cout << "Wrong input! Please choose again: ";
cin >> choice;
system("pause");
}
break;
}
case 5:{
cout << "___________________________\n";
cout << "\n\tTHANK YOU!\t\n";
cout << "___________________________";
exit(0); }
default:
continue;
}// End of switch case
}// End of while
return 0; //indicates success
}//End of main
答案 0 :(得分：3)
我在内部switch语句中看到一个问题：
case 1:
{
int i;
int total = 0;
cout << "How many customer? ";
cin >> total;
for(i=0; i<total; ++i)
{
cout << "________________________________\n";
cout << "\n\tCUSTOMER NO. " << 1 + i;
cout << "\n________________________________\n";
noCustomer[i]->add(); // this is function call to input
break;
}
}
case 2:
break运算符会中断循环，但不会阻止执行case 2:分支。
还有一个问题：重新分配choice。用户可以在任何意外中断while (choice != 4)的输入请求中输入4。您可以使用break来避免麻烦，并通过使用函数重新分配。
有很多不受数组边界访问的索引等于数组大小。
目前尚不清楚你想要在dob[10] = carInsurance_dob[10];中找到什么它会复制第11个字符。也许你想要复制整个char数组。使用std::string获取无错代码。