<?php
class SimpleClass{
var $number1;
var $number2;
public function input_two_no($num1,$num2){
$this->number1=$num1;
$this->number2=$num2;
}
public function the_sum(){
$total = $number1+$number2;
return $total;
}
public function output_the_sum(){
echo $total;
}
$numbers = new SimpleClass;
$numbers->input_two_no(10,5);
$numbers->the_sum();
$numbers->output_the_sum();
}
?>
请指出我在哪里出错了。我还没有得到输出。PHP OOP通过简单地添加两个数字
另外,检查$ total的变量范围。 –