eate(); $this->breave(); $this->drink(); }}//小孩class Baby extends Biology{ public function eate(){ echo "喝粥\n"; } public function drink(){ echo "喝牛奶\n"; }}$baby = new Baby();$baby->live(); 本文共 241 字，大约阅读时间需要 1 分钟。
eate(); $this->breave(); $this->drink(); }}//小孩class Baby extends Biology{ public function eate(){ echo "喝粥\n"; } public function drink(){ echo "喝牛奶\n"; }}$baby = new Baby();$baby->live(); 转载于:https://my.oschina.net/u/218155/blog/599830