If the integer is negative, the character representation is prefixed by a minus sign.
If the integer is negative, the character representation is prefixed by a minus sign.
如果这是一个负整数，那么描述符将以减号作为前缀。
If the integer is negative, the character representation is prefixed by a minus sign.
如果这是一个负整数，那么描述符将以减号作为前缀。