c++ - 空终止字符串

Question

下列哪些是以null结尾的字符串？

char *str1 = "This is a string.";
char *str2 = "This is a string.\0";
char str3[] = "This is a string.";
const char *str4 = "This is a string.";
const char *str5 = "This is a string.\0";
const char str6[] = "This is a string.";

Answer 1

• All : 一个字符串字面量是一个以空结尾的字符串
• str2 和 str5 具有双重空终止字符串的特殊性

还有:

• char *str1 应该是 const char *str1
• char *str2 应该是 const char *str2