C 程序按字母顺序对名称进行排序

编写一个C程序，按字母顺序对名称进行排序。此示例允许输入多个字符串或名称，并使用for循环按字母顺序对它们进行排序。if语句（if (strcmp(str[i], str[j]) > 0) ）将每个字符串与其他字符串进行比较。strcpy函数会将该字符串复制到temp，然后根据结果更改它们的位置。

#include <stdio.h>
#include <string.h>

int main()
{
	char str[50][50], temp[50];
	int i, j, number;

	printf("How many Strings you want to enter = ");
	scanf("%d", &number);

	printf("Please Enter String one by one\n");
	for (i = 0; i <= number; i++)
	{
		fgets(str[i], sizeof str[i], stdin);
	}
	for (i = 0; i <= number; i++)
	{
		for (j = i + 1; j <= number; j++)
		{
			if (strcmp(str[i], str[j]) > 0)
			{
				strcpy(temp, str[i]);
				strcpy(str[i], str[j]);
				strcpy(str[j], temp);
			}
		}
	}

	printf("\n***** The Order of the  Sorted Strings *****");
	for (i = 0; i <= number; i++)
	{
		puts(str[i]);
	}
	return 0;
}

在此程序中，sortNamesAlphabetically函数将按字母顺序对字符串集或字符串名称进行排序。

#include <stdio.h>
#include <string.h>

char str[50][50], temp[50];
int i, j, number;

void sortNamesAlphabetically()
{
	for (i = 0; i <= number; i++)
	{
		for (j = i + 1; j <= number; j++)
		{
			if (strcmp(str[i], str[j]) > 0)
			{
				strcpy(temp, str[i]);
				strcpy(str[i], str[j]);
				strcpy(str[j], temp);
			}
		}
	}
}
int main()
{
	printf("How many Words you want to enter = ");
	scanf("%d", &number);

	printf("Please Enter one by one\n");
	for (i = 0; i <= number; i++)
	{
		fgets(str[i], sizeof str[i], stdin);
	}

	sortNamesAlphabetically();

	printf("\n**********");
	for (i = 0; i <= number; i++)
	{
		puts(str[i]);
	}
	return 0;
}

How many Words you want to enter = 6
Please Enter one by one
usa
india
uk
japan 
china
australia

**********

australia

china

india

japan

uk

usa