C語言main()函數的參數問題詳解

#include<stdio.h>
void main(int argc, char* argv[])
{
	while (argc > 1)
	{
		++argv;
		printf("%s\n", argv);
		--argc;
	}
}

#include<stdio.h>
#include<stdlib.h>
void main(int argc, char* argv[])
{
	int i;
	printf("The number of string is: %d\n", argc - 1);
	for (i = 1; i < argc; i++)
	{
		printf("the string %d is:%s\n", i, argv[i]);
	}
}

#include<stdio.h>
void main(void)
{
	const char* str = "Welcome to Fishc.com!\n\n";
	//這個語句的含義是：聲明一個名為str的指針變量，
	//它指向一個字符型變量，初始化str為指向字符串
	//"Welcome to Fishc.com!\n\n"
#if(0)
	str[0] = 'w';
#endif
	str = "I love Fisfc.com!\n\n";
	printf("\n\n%s", str);
}
 

#include<stdio.h>
void main(void)
{
	 char* const str = "Welcome to Fishc.com!\n\n";
	//常量指針是一個固定的指針，不可以改變它的值，但它所指的數據可以改變
	str[0] = 'w';
#if(0)
	str = "I love Fisfc.com!\n\n";
#endif
	printf("\n\n%s", str);
}