Java/com/study/demo12/TestCodeGenerator.java

package com.study.demo12;

public class TestCodeGenerator {
    public static void main(String[] args) {
        CodeGenerator loginGenerator = new LoginCodeGenerator();
        CodeGenerator paymentGenerator = new PaymentCodeGenerator();

        System.out.println("登录验证码: " + loginGenerator.generate());
        System.out.println("支付校验码: " + paymentGenerator.generate());
    }
}