//將整數轉化為字串，並且不使用itoa函式
#include<stdio.h>
void main()
{
	int n = 12345;
	char temp[6] = {0};
	int i = 0;
	while (n)
	{
		temp[i++] = n % 10 + '0';//整數加上‘0’隱性轉化為char型別數
		n /= 10;
	}
	char dst[6] = {0};
	for (int j = 0; j < i; j++)
	{
		dst[j] = temp[i-1-j];
	}
	printf("%s\n", dst);
}

//將字串轉化為整數
#include<stdio.h>
void main()
{
	char temp[6] = {'1','2','3','4','5'};
	int n = 0, i = 0;
	while (temp[i])
	{
		n = n * 10 + (temp[i++] - '0');//隱性轉化為整數
	}
	printf("%d\n", n);
}