char a[] 和 char * a

char a[] = "hello";
char * p = "world";

將會初始化下圖所示的數據結果:

              +---+---+---+---+---+---+
    a:        | h | e | l | l | o |\0 |
              +---+---+---+---+---+---+
              +-----+     +---+---+---+---+---+---+
    p:        |  *======> | w | o | r | l | d |\0 |
              +-----+     +---+---+---+---+---+---+