我怎么可以保持变量重新进行初始化，每次我打电话C++的功能？

Question

我怎么过去的这个变量的初始化问题吗？如果我只能找出如何只有初始化他们只有一次...

*   Main.cpp : main project file.


/**************************   Begin Header **************************/
#include "stdafx.h" //Required by Visual C ++
#include <string>   //Required to use strings
#include <iostream> //Required for a bunch of important things
#include <iomanip>  //Required for manipulation of text and numbers


using namespace System; // Automatically uses System namespace
using namespace std;    // Automatically uses std namespace


#pragma hdrstop // Stops header here
/***************************  End Header ***************************/

//* Begin Function Headers *//
void inputData(); // This will be used to organize class member calls when setting and getting new data.
int getData(); // Will get user data, input in character string, convert to an integer and then perform data validation.
void createReport(int place, int number, string type); // Will organize commands to create the report and display it on the screen.
//* End Function Headers *//



class JarsSold // Begin Class -- JarsSold
{
    /* Begin Initialization & Creation of important resources */
private:
    static const int MaxArray = 5; // Value for the size of array JARS_SOLD
    int JARS_SOLD[MaxArray]; // Creation of array with size of MaxArray
    /* End Initialization & Creation of important resources */
public: // Makes underlining elements Public instead of the default Private
    JarsSold() // Begin Constructor
    { // Put something in num array
      JARS_SOLD[0] = 0; // [1]
      JARS_SOLD[1] = 0; // [2]
      JARS_SOLD[2] = 0; // [3]
      JARS_SOLD[3] = 0; // [4]
      JARS_SOLD[4] = 0; // [5] 
    } // End Constructor
    ~JarsSold(){}; // Destructor

/* Put all members for JarsSold class below here */

    void setNumber(int num, int value) // Set the number of jars sold with number placement in array and value to replace it with
    {
        JARS_SOLD[num] = value; // Stores value into JARS_SOLD at whatever num is at the time
    }; // End setNumber class member

    int getNumber(int num) // Get the current number held for jars sold with number placement in array
    {
        return JARS_SOLD[num]; // Returns whatever is in JARS_SOLD depending on what num is at the time
    } // End getNumber class member


/* Put all members for JarsSold class above here */

}; // End Class -- JarsSold




class SalsaTypes // Begin Class -- SalsaTypes
{
    /* Begin Initialization & Creation of important resources */
private:
    static const int MaxArray = 5; // Value for the size of array JARS_SOLD
    string SALSA_TYPES[MaxArray]; // Creation of array with size of MaxArray
    /* End Initialization & Creation of important resources */

public: // Makes underlining elements public instead of the default Private
    SalsaTypes() // Begin Constructor
    { // Add default strings to str array
      SALSA_TYPES[0] = "Mild";   // [1] Stores Mild into SALSA_TYPES at 0 spot
      SALSA_TYPES[1] = "Medium"; // [2] Stores Medium into SALSA_TYPES at 1 spot
      SALSA_TYPES[2] = "Sweet";  // [3] Stores Sweet into SALSA_TYPES at 2 spot
      SALSA_TYPES[3] = "Hot";    // [4] Stores Hot into SALSA_TYPES at 3 spot
      SALSA_TYPES[4] = "Zesty";  // [5] Stores Zesty into SALSA_TYPES at 4 spot
    } // End Constructor
    ~SalsaTypes(){}; // Destructor

/* Put all members for SalsaTypes class below here */
    void setType(int num, string type) // Set salsa type with number placement in array and string value to replace with
    {
        SALSA_TYPES[num] = type; // Stores the string type into SALSA_TYPES at whatever num is at the time
    }; // End setType class member

    string getType(int num) // Get the Salsa Type with number placement in array
    {
        return SALSA_TYPES[num]; // Returns SALSA_TYPES depending on what is in num at the time
    }; // End getType class member
/* Put all members for SalsaTypes class above here */

};// End Class -- SalsaTypes


void main( void ) // Begin Main Program
{



cout << fixed << setprecision(1) << setw(2); // Do a little customization with IoManip, might as well, we just might need it

    // Main Program Contents Begin Here //

    // Opening Credits for Program
    cout << "Welcome to the /Professional Edition\\ of the Chip and Salsa Sale Tool EXPRESS." << endl;
    cout << "This handy-dandy tool will make a chip and salsa manufacturer's job much easier!" << endl;
    cout << endl << endl << endl;
    cout << "Press any key to begin inputing the number of jars sold for these salsa flavors: " << endl << endl;
    cout << "-Mild" << endl << "-Medium" << endl<< "-Sweet" << endl << "-Hot" << endl << "-Zesty" << endl << endl << endl;

    system("pause"); // Pause here. After this begin data input
    cout << endl << endl << endl;

    inputData(); // Will deal with data input, validation, and reports

    // Main Program Contents End Here //

} //End Main Program

// All Content for Functions Begin Here //
void inputData() // Begin inputData Function
{
    // Begin Create Class Obects //
    SalsaTypes salsa;
    JarsSold jars;
    // End Create Class Objects //
    // Variable Creation Begin //
    // Variable Creation End //
    // All Content for Functions Begin Here //

    for (int i = 0 ; i < 5 ; i++) // Start For Loop
    {
        cout << "Input how many Jars were sold for \"" << salsa.getType(i) << "\"" << ": "; // Displays which Salsa we are reffering to

        jars.setNumber(i,getData()); // Will use getData() to determine what value to send to the JarsSold class.
        createReport(i,jars.getNumber(i),salsa.getType(i)); // Send these numbers to another function so it can make a report later

        cout << endl << endl; // Using this as a spacer
    }

    // All Content for Functions End Here //

}; // End inputData Function

int getData() // Begin getData Function
{
    // Variable Creation Begin //
    char charData[40]; // Will be used to store user data entry
    int numTest; // Will be used for Data Validation methods
    // Variable Creation End //

    // Main Contents of Function Begin Here //
retry: // Locator for goto command

    cin >> charData; // Ask user for input. Will store in character string then convert to an integer for data validation using 'Atoi'

    numTest = atoi ( charData ); // Convert charData to integer and store in numTest

    if (numTest < 0) { numTest = 0; cout << endl << endl << "You can't enter negative numbers! Try Again." << endl << endl << "Re-enter number: "; goto retry;} // Filter out negative numbers

    // Main Contents of Function End Here //

    return numTest; // If it makes it this far, it passed all the tests. Send this value back.
}; // End getData Function

void createReport(int place, int number, string type) // Begin createReport Function
{
    // Variable Creation Begin //

    int const MAX = 5;  // Creat array size variable
    int lowest; // The integer it will use to store the place of the lowest jar sales in the array
    int highest; // The integer it will use to store the place of the highest jar sales in the array
    int total; // The integer it will use to store total sales
    int numArray[MAX];  // Create array to store jar sales (integers)
    string typeArray[MAX];  // Create array to store types of salsa (strings)

    // Variable Creation End //
    // Main Contents of Function Begin Here //

    numArray[place] = number; // Store number into new array
    typeArray[place] = type;    // Store type into new array

    if (place = 4) // If the array is full it means we are done getting data and it is time to make the report.
    { // Begin making report, If statement start

        for ( int i = 0 ; i < 5 ; i++ ) // Using a for-loop to find the highest and lowest value in the array
        { // For Loop to find high and low values BEGIN
            if ( lowest < numArray[i]) // Keep setting lowest to the lowest value until it finds the lowest one
            { // Start If
            lowest = numArray[i]; // Lowest equals whatever is in numArray at i spot
            } // End If

            if ( highest > numArray[i]) // Keep setting highest to the highest value until it finds the highest one
            { // Start If
            highest = numArray[i]; // Highest equals whatever is in numArray at i spot
            } // End If
            total += numArray[i]; // Will continually add numArray at i spot until it has the total sales
        } // For Loop to find high and low values END

    // Main Contents of Function End Here //

} // END creatReport Function
// All Content for Functions Ends Here //

那么我的问题是...我需要让我的数据从一个功能到另一个。我想我可以弄清楚如何创建全球一级的对象，但我不能。所以我想我可以得到围绕刚刚通过的论点的另一个功能，然后再恢复它们在其自己的阵列，然后继续这样做，直到我完全复制所有的数字阵列和串阵列。嗯...是的不会的工作除外，这部分在createReport():

// Variable Creation Begin //

    int const MAX = 5;  // Create array size variable
    int lowest; // The integer it will use to store the place of the lowest jar sales in the array
    int highest; // The integer it will use to store the place of the highest jar sales in the array
    int total; // The integer it will use to store total sales
    int numArray[MAX];  // Create array to store jar sales (integers)
    string typeArray[MAX];  // Create array to store types of salsa (strings)

// Variable Creation End //

会发生什么情况是，我想我太累了，我错过了，每次我打电话的功能，它重新初始化这些相同的变量。我会变成另一种变量，然后它将得到重新初始化为默认值。

我试图使用计数变量，计算到一个后初始化，然后是1它不初始化了。没有，没有工作，因为变量没有初始化的范围之外的，如果声明。然后我试图GOTO声明，将跳过初始化后发生的一次。没事了与初始化第一阶段和没有汇编。

我需要弄清楚我怎么可以

1. 保持这些变量得到重新分配或被初始化以使他们能够保持他们的价值观。或
2. 找出如何创建全球一级的对象(并且是的，我已经试过外部课程的多个来源的文件。没有运气只是大量的错误)

我不是很好的编程。但我向你保证，我一直在这片几个小时和小时和我整晚只是不断地试验和错误。我真的很为自己感到骄傲，因为这代码非常先进的我。我已经看了每一教程在谷歌和我的运气-你们是我最后的希望!!对不起再次的家伙。我知道这是个愚蠢的问题...

最后一个快速的问题。你怎么创建全球一级的对象？例如

MyClass
{
  MyClass(){};
  ~MyClass(){};
}

MyClass MyClassObject;

我怎么使用MyClassObject在我整个计划？

只有这样，我可以使用它是如果我创建了一个新的对象的每一次每一个功能，使用。这意味着，我失去了所有的数据存储在我的课吗？

我已经阅读，具有全球的对象并不是一个好主意。我会喜欢没有使用他们，但我有没有线索的任何替代办法，实际上我可以理解的。

任何其他评论或建议是极大的赞赏。我爱这个东西我只是没有许多人问的问题。

Answer 1

你做的真的很好！简单的回答是写在前面的变量：

static int const MAX = 5;  // Creat array size variable
static int lowest; // The integer it will use to store the place of the lowest jar sales in the array
static int highest; // The integer it will use to store the place of the highest jar sales in the array
static int total; // The integer it will use to store total sales
static int numArray[MAX];  // Create array to store jar sales (integers)
static string typeArray[MAX];      // Create array to store types of salsa (strings

我想我可以给你更好的建议，虽然，我会看看你的代码，用于多一点的时间。作为对全球变量，你写了什么有用MyClassObject会工作的罚款。你会用这样的：

MyClass { 
public:
  MyClass(){}; 
  ~MyClass(){}; 
  int variable;
};
MyClass MyClassObject;

// in a method you'd do this
void whateverMethod() {
  MyClassObject.variable = 5;
  std::cout << MyClassObject.variable << std::endl;
}

那样的事情。有一些风格问题，可以是固定的，但说实话我说只是让它工作的第一个然后我们可以谈论的那些。

Answer 2

1)使他们静态的，例如

static string typeArray[MAX];

初始化他们一次，他们将继续同直到你改变它们。不要尝试和使用他们在同一时间从两个线程。

2)，您可以创建一个全球性的目的，宣布它在文件的范围：

class CFoo;

CFoo s_foo;

class CFoo 
{
    public:
    CFoo();
    ~CFoo();
}

然后s_foo将是一个实例CFoo可在任何地方，可以看到s_foo(此文件和其他有外部CFoo s_foo;)