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如果我有这样的代码,带有引号和作者,我怎样才能得到两个input type="text"框,我可以在其中写例如两个名称,然后将名称显示在引号中以代替“(随机用户)”?

//store the quotations in arrays
quotes = [];

authors = [];

quotes[0] = "(randomuser) example (randomuser) example?";

authors[0] = "Authors!";

quotes[1] = "(random user) example (random user) example?";

authors[1] = "Authors!";

//calculate a random index
index = Math.floor(Math.random() * quotes.length);

//display the quotation

document.write("<DL>\n");

document.write("<DT>" + "\"" + quotes[index] + "\"\n");

document.write("<DD>" + " " + authors[index] + "\n");

document.write("</DL>\n");

//done
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1 回答 1

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我认为您想将引号数组中的 (randomuser) 替换为从几个<input>标签中获得的字符串。在这种情况下,您可以像这样获取这些输入的内容:

var user1 = document.getElementById("input1").value;
var user2 = document.getElementById("input2").value;

现在,您可以使用 "(randomuser1)" 和 "(randomuser2)" 替换那些输入的值String.replace(),如下所示:

//Sub in the usernames
var newquote = quotes[0].replace("(randomuser1)", user1); //quotes[0] can of course be any index
newquote = newquote.replace("(randomuser2)", user2);

然后就可以显示了newquote。请记住,您应该避免document.write(). 相反,您可以在页面上创建一个显示 div,然后将引号放入其中,如下所示:

var quotediv = document.getElementById("quoteDiv"); //get the div (or any other element) that you want to display the quote in
quotediv.innerHTML = newquote; //display your quote in the div.

JsFiddle 示例

编辑

要从较大的列表中随机选择一个报价,您可以更改quotes[0]quotes[Math.floor(Math.random() * quotes.length)]. 要添加更多用户,您将添加更多输入和更多替换语句。例子:

//Sub in the usernames
var ind = Math.floor(Math.random() * quotes.length); //select random quote
var newquote = quotes[ind].replace("(randomuser1)", user1);
newquote = newquote.replace("(randomuser2)", user2);
newquote = newquote.replace("(randomuser3)", user3);
newquote = newquote.replace("(randomuser4)", user4);
newquote = newquote.replace("(randomuser5)", user5);

对于更多的用户,这可以简化为一个 for 循环,但我会让你弄清楚这一点。

于 2013-06-12T17:53:16.153 回答