javascript - 用Js实现有趣的游戏

Question

我正在尝试实现一个功能，该功能要求多个 qs 存储它们，并用这些输入返回有趣的句子。但它不起作用，没有显示错误，但列表没有保存用户本身的 3 个输入，并注意到每次将输入保存在 alist 数组中时..它会替换以前的列表项，但我想保存所有这三个。

for(i = 0; i < 3; i++) {
        var qlist = ["adjective?","Verb?", "noun?"];
        var alist = [];
        alist[i] = prompt(qlist[i] + "[questions number-" + i + "]");
    }
    var statement = document.write("There once was a "+ alist[0] + " programmer who once wanted to use javascript to " + alist[1] + " the " + alist[2]);    
    alert(statement);

Answer 1

alist 需要在循环外初始化。否则你会覆盖它。

另外，无论哪种方式，都不要警告(声明)类型未定义。

另外，不要初始化 qlist 3 次。

let alist = [];
let qlist = ["adjective?","Verb?", "noun?"];
for(let i = 0; i < 3; i++) {
    alist[i] = prompt(qlist[i] + "[questions number-" + i + "]");
}
let statement = document.write("There once was a "+ alist[0] + " programmer who once wanted to use javascript to " + alist[1] + " the " + alist[2]);