Question

我目前正在尝试完成我的大学课程，但我很难让我的代码工作。有人可以帮助我吗？

现在更新你的程序，以便检查彩票的工作结果由一个名为checkNumbers（）的函数完成。这个功能应该将客户编号和中奖号码列为参数。客户编号应从函数返回叫做getCustomerNumber（）。中奖号码应该是从一个名为getWinningNumbers（）的函数返回。显示结果应该由一个名为displayResult（）的函数完成。该整个过程应该由一个名为init（）的函数启动。

<!doctype html>
<html lang="en">
<head>
    <script type="text/javascript" src="lottotask5.js">
    </script>
   <meta charset="utf-8">
   <title>DCSIS JavaScript Module TMA</title>
</head>
<body>
</body>
</html>

function init() {
    new checkNumbers();
    new displayResult();
    new getWinningNumbers();
    new getCustomerNumbers();
    }

function getWinningNumbers(){ 
    var winningNumbers = [12,17,24,37,38,43];
    return winningNumbers;
    }

function getCustomerNumbers(){ 
    var customerNumbers = 12;
    return customerNumbers;
    }

function checkNumbers(customerNumbers, winningNumbers){ 
    match == false;
    for ( var i = 0; i < this.winningNumbers.length; i++){ 
        if (this.customerNumbers == this.winningNumbers[i]){    
            match == true;
            }       
        }
        return match;
    }
function displayResult(){
    if(match == true){
            alert("This Week's Winning Numbers are:\n\n" + winningNumbers[0] 
            +", "+  winningNumbers[1] +", "+ 
            winningNumbers[2] +", "+ winningNumbers[3] +", "+ 
            winningNumbers[4] +", "+ winningNumbers[5] + 
            "\n\n The Customer's Number is:\n\n"  + customerNumbers + "\n\n 
            We have a match and a winner!");
        }
        else 
        {
            alert("This Week's Winning Numbers are:\n\n" + winningNumbers[0] 
             +", "+  winningNumbers[1] +", "+ 
            winningNumbers[2] +", "+ winningNumbers[3] +", "+ 
            winningNumbers[4] +", "+ winningNumbers[5] + 
            "\n\n The Customer's Number is:\n\n"  + 13 + "\n\n Sorry you are 
            not a winner this week.");
        }
    }

Answer 1

函数displayResults无法看到数组winsNumbers的成员。您必须从displayResult（）调用函数getWinningNumbers（）以获取中奖号码列表。客户编号和非全局变量也是如此。

https://www.w3schools.com/js/js_scope.asp

JavaScript上的大学代码问题

1 个答案: