<?php class Human { private $name = ''; private $sex = ''; private $age = 0; public function __construct() { // TODO... } public function setName($name) { $this->name = $name; return $this; } public function setSex($sex) { $this->sex = $sex; return $this; } public function setAge($age) { $this->age = $age; return $this; } public function printProfile() { echo "俺叫{$this->name},俺是个{$this->sex},俺今年{$this->age}岁。"; } } $human = new Human(); $human->setName('张三')->setSex('汉子')->setAge(18)->printProfile(); // 输出结果:俺叫张三,俺是个汉子,俺今年18岁。
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