学步园

char[]与char*的区别

char str1[] = "abc"; 
char str2[] = "abc"; 
const char str3[] = "abc"; 
const char str4[] = "abc"; 
const char *str5 = "abc"; 
const char *str6 = "abc"; 
char *str7 = "abc"; 
char *str8 = "abc"; 
cout < < ( str1 == str2 ) < < endl; 
cout < < ( str3 == str4 ) < < endl; 
cout < < ( str5 == str6 ) < < endl; 
cout < < ( str7 == str8 ) < < endl; 

结果是：0 0 1 1 str1,str2,str3,str4
是数组变量，它们有各自的内存空间；而 str5,str6,str7,str8是指针，它们指向相同的常量区域。