c - 在 while 循环中将值存储在数组中

Question

因此，程序应该根据用户给出的初始温度计算温度，然后根据风、湿度和条件进行更改。首先从用户处获取起始温度，然后显示一个选择菜单，包括输入风速、输入湿度、输入条件、显示当前温度、显示初始温度修改后的最后 1000 个温度以及显示总和所有温度。

我已经完成了大部分工作，但我在如何存储和显示最后 1000 个温度方面遇到了问题。我应该在这个程序中使用一个数组，但我不确定如何使用它来获得我需要的东西。请帮忙。

#define _CRT_SECURE_NO_WARNINGS
#define CLS system("cls")
#define PAUSE system("pause")
#include <stdio.h>
#include <stdlib.h>

// PROTOTYPING FUNCTIONS
void askTemp();
float convertC(float f);
void displayMenu();
char getChoice();
char getCondChoice();
float getHumid();
float getTemp();
float getWind();

main() {
    // INITIALIZE VARIABLES
    float temp;
    float wind = 5;
    float humid = 20;
    int trump = 0;
    char choice = 'A';
    int num;
    char cond = 'S';
    char condChoice;
    float celsius;
    int i = 0;
    int j = 0;
    int k = 0;
    float temp2 = 0;
    float wind2 = 0;
    float humid2 = 0;
    int x = 0;

    askTemp();
    temp = getTemp();

    do{
        displayMenu();
        choice = getChoice();

        switch (choice){
        case 'W': // Get Wind
            wind = getWind();
            break;
        case 'H': // Get the humidity
            humid = getHumid();
            break;
        case 'C': // Enter subswitch statement to get condition
            condChoice = getCondChoice();
            switch (condChoice){ // gets condition 
            case 'S':
                cond = 'S';
                break;
            case 'C':
                cond = 'C';
                break;
            case 'R':
                cond = 'R';
                break;
            }// END SWITCH
        case 'T': // display current temperature

            if (temp != temp2 || wind != wind2 || humid != humid2){ // apply degree changes based on humid, wind, and cond
                if (wind > 100)
                    temp = temp - (temp * .03);
                if (wind < 10)
                    temp = temp + (temp * .025);
                if (humid > 75)
                    temp = temp + (temp * .058933);
                if (humid < 20)
                    temp = temp - (temp * .0162);
                if (cond == 'S' && wind > 30)
                    temp = temp + (temp * .01);
                if (cond == 'S' && wind == 0)
                    temp = temp + (temp * .005);
                if (cond == 'R')
                    temp = temp - (temp * .02);
                if (cond == 'C' && humid > 75)
                    temp = temp + (temp * .01);
                if (cond == 'C' && humid < 75)
                    temp = temp + (temp * .005);
                if (wind > 30 && humid > 75 && cond == 'S')
                    temp = temp;
                wind2 = wind;     // assigned variables so program does not apply condition changes multiple times for same temp
                humid2 = humid;
                temp2 = temp;
            }// END IF
        celsius = convertC(temp2);
        printf("The Current temperature is %.1ff/%.1fc degrees Celsius\n", temp2, celsius);
        PAUSE;
        break;
    case 'P': // Display previous 1000 temperatures

        break;
    case 'A': // Display average of all temps entered
        break;
    }// END SWITCH

} while (choice != 'Q');



} // END MAIN

void askTemp(){
    printf("What is the current temperature: \n");
    return;
}// end askTemp

void displayMenu(){
    CLS;
    printf("W. Enter Wind Speed\n");
    printf("H. Enter Humidity\n");
    printf("C. conditions\n");
    printf("T. Current Temperature\n");
    printf("P. Previous Temps\n");
    printf("A. Average Temperature\n");
    printf("Q. Quit\n");
    return;
} // end currentTemp

char getChoice(){
    char result;
    scanf("%c", &result);
    result = toupper(result);
    return result;
}// end getChoice

char getCond(){
    char result;


}// end getCond

char getCondChoice(){
    char result;
    printf("S for sunny, C for cloudy, R for rainy\n");
    scanf(" %c", &result);
    result = toupper(result);
    do{
        if (result != 'S' && result != 'C' && result != 'R'){
            printf("Invalid input try again\n");
            scanf(" %c", &result);
            result = toupper(result);
        }
    } while (result != 'S' && result != 'C' && result != 'R');
    return result;
}// end getCond

float getHumid(){
    float result;
    scanf("%f", &result);
    return result;
}// end getHumid

float getTemp(){
    float result;
    scanf("%f", &result);
    do{

        if (result < -50 || result > 150){
            printf("Invalid temperature try again\n");
            scanf("%f", &result);
        }
    } while (result < -50 || result > 150);
    return result;
}// end getTemp

float getWind(){
    float result;
    scanf("%f", &result);
    return result;
}// end getWind

float convertC(float f){
    float t;
    t = (f - 32) / 1.8;
    return(t);
}// end convert

Answer 1

您声明一个包含 1000 个 float 的数组，如下所示:

float saved_temperatures[1000];

您可以通过索引数组来存储值，并将其像变量一样使用。

saved_temperatures[i] = temp;
++i;

i 是一个索引变量，您应该确保它从 0 开始并且始终小于 1000。saved_Temperatures 的有效索引范围是 0..999 .

for (int i = 0; i < 1000; ++i) {
    printf("index %d temperature %f\n", i, saved_temperatures[i]);
}