字元指針
在指針的類型中我們知道有一種指針類型為字元指針char*
一般是這樣使用的:
int main()
{
char ch = 'w';
char* pc = &ch;
*pc = 'w';
system("pause");
return 0;
}
還有一種使用方式如下:
int main()
{
char* pstr = "hello bit";//把字元串放到pstr指針變量裡
printf("%s\n", pstr);
system("pause");
return 0;
}
代碼 char pstr = “hello bit.”; 特别容易讓同學以為是把字元串 hello bit 放到字元指針 pstr 裡了,但 是/本質是把字元串 hello bit. 首字元的位址放到了pstr中。
#include<stdio.h>
#include<stdlib.h>
int main()
{
char str1[] = "hello bit.";
char str2[] = "hello bit.";
char* str3 = "hello bit.";
char* str4 = "hello bit.";
if (str1 == str2)
printf("str1 and str2 are same\n");
else
printf("str1 and str2 are not same\n");
if (str3 == str4)
printf("str3 and str4 are same\n");
else
printf("str3 and str4 are not same\n");
system("pause");
return 0;
}