Question

您好这是我的功能请帮我了解问题所在：

#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#define LENGTH 10

void searchingFunc(int arr[],int number,int specialNumber);
void placesOfNum(int arr[],int number,int specialNumber);
int evenPlaces(int arr[],int number,int specialNumber);

int main()
{
    int len =10,someNum =0,i=0,ans=0;
    int someArr[LENGTH]={0};
    for(i=0;i<len;i++)
    {
        printf("enter a number: \n");
        scanf("%d",&someArr[i]);
    }
    printf("now, enter the other number\n");
    scanf("%d",&someNum);
    searchingFunc(someArr,len,someNum);
    placesOfNum(someArr,len,someNum);
    ans = evenPlaces(someArr,len,someNum);
    printf("%d",ans);
    return 0;
}

/**
this function
input:
output:
*/
void searchingFunc(int arr[],int number,int specialNumber)
{
    int i = 0;
    while ((i < number) && (specialNumber != arr[i])) 
    {
        i++;
    }

    if (i < number)
    {
        printf("the number found\n");
    } 
    else 
    {
      printf("the Number not found\n");
    }
}

/**
this function
input:
output:
*/
void placesOfNum(int arr[],int number,int specialNumber)
{
    int i = 0;
    for(i=0;i<number;i++)
    {
        if (specialNumber== arr[i])
        {
            printf("in the %d\n",i+1);
        }
    }

}


/**
this function
input:
output:
*/
int evenPlaces(int arr[],int number,int specialNumber)
{
    int i=1,sum=0;
    for(i=1;i<=number;i+2) //because the counting start from 0
    {
        sum = sum + arr[i];
    }
    return sum;

}

函数工作但最后，它停止工作，并且不打印最后一个数字 - 偶数的总和。请帮助我谢谢

Answer 1

在evenPlaces函数中，您未在i循环中更新for。您还必须将i<=number更改为i < number。

更改

for(i=1;i<=number;i+2)

到

for(i = 1; i < number; i = i+2) {}

Working Code

程序在c停止无理由

1 个答案: