PHP 实现：
/
- Class Employee
- 雇员类 */ class Employee { private \(_name; private \)_dept;//部门 private \(_salary;//薪水 private \)_subordinates;//下属
public function __construct(string \(name, string \)dept, int $sal) {
$this->_name = $name; $this->_dept = $dept; $this->_salary = $sal; $this->_subordinates = [];}
public function add(Employee $employee) {
array_push($this->_subordinates, $employee);}
public function remove(Employee $employee) {
$this->_subordinates = array_filter($this->_subordinates, function ($v) use ($employee) { return ($employee != $v); });}
public function getSubordinates() {
return $this->_subordinates;}
public function __toString() {
// TODO: Implement __toString() method. return "Employee: [name: " . $this->_name . ",dept: " . $this->_dept . ",salary: " . $this->_salary . "]";} }
class Demo {
public static function main() { $CEO = new Employee("John", "CEO", 30000); $headSales = new Employee("Robert", "Head Sales", 20000); $headMarketing = new Employee("Michel", "Head Marketing", 20000); $clerk1 = new Employee("Laura", "Marketing", 10000); $clerk2 = new Employee("Bob", "Marketing", 10000); $salesExecutive1 = new Employee("Richard", "Sales", 10000); $salesExecutive2 = new Employee("Rob", "Sales", 10000); $CEO->add($headSales); $CEO->add($headMarketing); $headSales->add($salesExecutive1); $headSales->add($salesExecutive2); $headMarketing->add($clerk1); $headMarketing->add($clerk2); echo $CEO . PHP_EOL; $headMarketing->remove($clerk2); foreach ($CEO->getSubordinates() as $employee) { echo '-' . $employee . PHP_EOL; foreach ($employee->getSubordinates() as $e) { echo '---' . $e . PHP_EOL; } } } }
Demo::main();
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