iOS中定义常量字符串的问题

Question

有个问题比较疑惑，定义常量字符串的问题，以下代码：
NSString * const kSomeConstantString = @"";与
const NSString * kSomeConstantString = @"";有何区别？

Answer 1

const type * variable name: you can change the pointer’s pointer, but you cannot change the content pointed to by the pointer.
Type * const variable name: The content pointed to by the pointer can be changed, but the pointing of the pointer cannot be changed.
Reference address

Answer 2

C language knowledge- - const NSString* const string;