Question

所以generateOTP（）应该给我一个随机数，它将显示在文本“ Enter the Number Above”上方，它可以工作，但是在我添加第二个函数后，它消失了。该程序应该做的是显示一个随机数，然后在该数字与该随机数匹配时输入下一个数字，这将给出一条消息“您的答案与上述数字匹配”，否则您的答案与上述数字不匹配。”请帮助

<html>
    <head>
        <title>Simulating One-Time-Password (OTP) or CAPTCHA</title>
        <meta charset="UTF-8">
        <meta name="description" content="Simulating One-Time-Password (OTP) or CAPTCHA">
        <meta name="keywords" content="java, otp">
        <meta name="author" content="sad">

        <style>
        </style>

        <script>
            function generateOTP() { 

                // Declare a digits variable  
                // which stores all digits 
                var digits = '0123456789'; 
                let OTP = ''; 
                for (let i = 0; i < 6; i++ ) { 
                    OTP += digits[Math.floor(Math.random() * 10)]; 
                } 
                return OTP; 

            } 
                document.write("OTP of 6 digits: ") 
                document.write( generateOTP() );
                var ranNum = generateOTP();

            function checkValue(){
                var finalAnswer =
                document.getElementById("answer").value;

                if (ranNum== finalAnswer) {
                    document.write("Your answer matches the number above")

                    else{
                        document.write("Your answer does not match the number above")
                    }

                }
            }
        </script>

    </head>

    <body>
        <p> Enter the number above
            <input id="answer" type="text"/>
        </p>
        <p>
            <button onclick="checkValue()"> Display  </button>
        </p>
    </body>

</html>

Answer 1

您在class MainActivity extends Activity{ ... @Override public void onSongSelected(String title, String content){ bottomSheet.titleView.setText(title); bottomSheet.contentView.setText(content); } }语句中输入了else关键字。应该是：

if

为什么添加新功能后我以前的功能不起作用？我该如何解决？

1 个答案: