使用scanf獲取用戶的幾個輸入

Question

我在這裏遇到問題。我正在嘗試從用戶處獲得幾個輸入，並根據他工作的天數計​​算總輸入和平均值。例如，如果他工作了10天，當他輸入10時，程序會要求他輸入10天的工作時間。 iterateArray數組只能保存最多30天和變量天數，並保存輸入的天數。我怎樣才能得到使用scanf的值？

int main(void){ 

    printf("The program calculates the total hours worked during\n"); 
    printf("a specific period and the average length of a day.\n\n"); 
    printf("How many days:"); 

    scanf("%d",&days); 


    do{  
      if(i==days){ 
      break; 
      i++; 
     } 


    else{ 
     printf("Enter the working hours for day %d:",++i); 
     scanf("%f",&iterateArray[0]); 
     } 

    }while(i<days); 


} 

Answer 1

我覺得你在尋找這樣的事情：

#include <stdio.h> 
#include <stdlib.h> 

int main(){ 

    int days, dayCount; 
    double iterateArray[30], totalWork = 0, averageWork = 0; 

    printf("The program calculates the total hours worked during\n"); 
    printf("a specific period and the average length of a day.\n\n"); 
    printf("How many days: \n>"); 

    scanf(" %d", &days); 

    if (days > 30) { 
     printf("You can't work longer then 30 days!"); 
     exit(0); 
    } 

    for(dayCount = 0; dayCount < days; dayCount++) { 
     printf("Enter the working hours for day %d:", dayCount+1); 
     scanf(" %lf", &iterateArray[dayCount]); 
     totalWork += iterateArray[dayCount]; 
    } 

    averageWork = totalWork/days; 

    printf("\nThe total hours you worked is: %.2lf\n", totalWork); 
    printf("The average length of a day is: %.2lf\n", averageWork); 


    return 0; 

}