【发布时间】：2015-06-18 08:29:42
【问题描述】：
如果发错地方了，我深表歉意。我真的没有看到发布特定代码问题的区域。
我的教授要求我创建一个程序，允许用户插入、编辑和打印出客户数据库。我的一个功能有问题，它似乎不能很好地比较某些东西。该函数是第 85 行的 EditClient 函数，我遇到的逻辑问题在第 93 行。我在代码中包含了一些测试，使我确定它是第 93 行，例如在第 99 行的 else 语句中我让它打印出比较中使用的相同参数。哪个有效！我不知道为什么它不理解比较。
#include <iostream>
#include <iomanip>
using namespace std;
struct ClientInfo{ // the structure template for the client info
char name[40]; //client name
char state[40]; //client state
char city[40];
int PhoneNumber;
long double AccountBalance; //accounts balance
char PaymentDate; //payment date
};
ClientInfo ClientList[10]; //intializes an array with the data type clientinfo
void MainMenu();
void NewClient(ClientInfo List[]); // prototypes
void ViewClient(ClientInfo List[]);
void EditClient(ClientInfo List[]);
int main(){
MainMenu();
system("pause");
}
void MainMenu(){ //this function is the main menu function
char choice = 4;
bool loop = true;
while (loop){
cout << "Welcome to the client database, enter 1 to view the clients, 2 to edit a client , and 3 to enter an entire new client. 0 to quit" << endl; //main menu prompt
cin >> choice;
if (choice == '1'){
ViewClient(ClientList);
}
else if (choice == '2'){
EditClient(ClientList);
}
else if (choice == '3'){
NewClient(ClientList);
}
else if (choice == '0'){
cout << "thank you for using the client database, closing out now" << endl;
loop = false;
}
else{
cout << "invalid number" << endl;
}
}
}
void NewClient(ClientInfo List[]){//function that goes through cins to insert client data
int desiredTimes = 0; // the number of clients the person wish to enter
cout << "how many clients are you entering ?, your list current has "<<endl;
cin >> desiredTimes;
cout << "entering new client function..." << endl;
for (int cnt = 0; cnt < desiredTimes; cnt++){ // runs the program exactly the amount of times the person wished.
cout << "please enter client name" << endl;
cin.ignore();
cin.getline(List[cnt].name, 40);
cout << "please enter client state" << endl; // the getline is used here because there may be spacings within these first 3 catagories
cin.getline(List[cnt].state, 40);
cout << "please enter client city" << endl;
cin.getline(List[cnt].city, 40);
cout << "please enter client Phone Number" << endl;
cin.ignore(); // this is used to prevent the getline from causing issues with the cin
cin >> List[cnt].PhoneNumber;
cout << "please enter client Account Balance" << endl;
cin >> List[cnt].AccountBalance;
cout << "please enter client Payment Date" << endl;
cin >> List[cnt].PaymentDate;
}
}
void EditClient(ClientInfo List[]){ // function to search for a name requested and display the info
char name[40];
cout << "what is the name of the client you wish to view (be specific)?";
cin >> name;
bool loop = true; // boolean for the loop
int cnt = 0; // position in the array
while (loop){
if (cnt < 11){
if (name == List[cnt].name){ //if true, prints out the client's info
cout << "true";
/*NewClient(List[cnt]);*/
loop = false; // ends the loop
}
else{
cout << name << " " << List[cnt].name << endl;
cnt++;
}
}
else{
cout << "your client isn't in the database M8" << endl;
loop = false;
}
}
}
void ViewClient(ClientInfo List[]){//this function goes through the client list and displays a particular client
cout << "the following is a huge overrun of all the data inside this list, prepare your self." << endl;
for (int cnt = 0; cnt <= 10; cnt++){//goes through until the counter is greater than the size of the list in the parameter
cout << endl;
cout << List[cnt].name;
cout << List[cnt].state;
cout << List[cnt].city;
cout << List[cnt].PhoneNumber;
cout << List[cnt].AccountBalance;
cout << List[cnt].PaymentDate;
}
}
这是我遇到比较错误的特定行。
if (name == List[cnt].name){ //if true, prints out the client's info
【问题讨论】：
-
为了以后参考，在引用没有行号的代码时不要使用行号。我没有否决这个问题。
-
对于那些想要输出的人，在使用 newclient 函数成功插入客户端后。我将输入一个名字，比如说 bob。输出：bob bob bob bob bob bob bob bob bob
-
@JonnyHenly 抱歉，我将编辑问题以包含行号
-
我会避免所有行号，而是坚持使用代码 sn-ps 和与所需输出匹配的程序输出来解释问题。
-
@JonnyHenly 我找不到为标准控制台输出插入片段的选项。由于我的声誉低，上传图片也不是解决方案。但我确实拔出了我遇到问题的确切线路。感谢您以正确的方式提出有关 stackoverflow 的问题。
标签： c++ function comparison structure conditional