Question

以下是代码：

<SCRIPT LANGUAGE="Javascript"><!--

function text() {
};

text = new text();
number = 0;

// textArray        
text[number++] = "I read the other day some verses written by an eminent painter which were original and not conventional."         
text[number++] = "The soul always hears an admonition in such lines, let the subject be what it may."        
text[number++] = "The sentiment they instil is of more value than any thought they may contain."        
text[number++] = "To believe your own thought, to believe that what is in your private heart is true for all men, that is genius." 

increment = Math.floor(Math.random() * number);

document.write(text[increment]);

//--></SCRIPT>

特别是我喜欢的词语：

对你来说是真的

从数组中的第四个文本链接到一些外部网站。

<a>标记对我来说似乎不起作用。字符串方法也不是。当然，我是一个完全不知所措的人。

Answer 1

我猜您的问题与使用a标记后插入的引号有关，您应该使用正确意义上的引号，如下所示：

text[number++] = "I read the other day some verses written by an eminent painter which were original and not conventional"         
text[number++] = "The soul always hears an admonition in such lines, let the subject be what it may."        
text[number++] = "The sentiment they instil is of more value than any thought they may contain."
text[number++] = "To believe your own thought, to believe that what is in your private heart is <a href='javascript:void(0);'>true for </a> all men, that is genius."

<强> http://jsbin.com/luyod/2/

Answer 2

让我们一步一步地完成这个步骤，

创建一个名为var的新text iable，并将其设为 Array 。
```
var text = [];
```
这里的[]是数组文字。

使用字符串填充数组 text

text.push("I read the other day some verses written by an eminent painter which were original and not conventional.");
text.push("The soul always hears an admonition in such lines, let the subject be what it may.");
text.push("The sentiment they instil is of more value than any thought they may contain.");
text.push("To believe your own thought, to believe that what is in your private heart is true for all men, that is genius.";

此处，someArray.push是一种向数组 someArray添加新项的方法。每个新项目都会获得它自己的索引，索引从0开始。

从数组 text中选择一个随机索引，并将其分配给新的var iable，i
```
var i = Math.floor(Math.random() * text.length);
```
在 JavaScript 中，方法Math.random返回的值严格小于1 但大于或等于{{1} }} 的。这意味着我们可以将值乘以数组的项目数（或长度），然后向下舍入（或 floor ）用于从数组中选择随机索引的数字。
在0的索引 i的字符串中，将text的任何内容替换为您的链接。让我们给出"true for you"名称var，以便我们可以参考它。
```
str
```
此处var str = text[i].replace(/true for you/g, "<a href=\"http://stackoverflow.com\">true for you</a>");是regular expression或 RegExp 。最后的/true for you/g代表g，并且意味着＆＃34;继续这样做直到你到达终点＆＃34;。
以您喜欢的方式将此新字符串（我们称之为g）写入 #document 。由于我们无法看到与您的 HTML 标记相关的任何内容，因此我会保留您的str，但这被视为bad practice，因此您可以选择其他选项＃39;我想在将来了解。
```
document.write
```

如何在Javascript随机化文本数组中插入超链接？

2 个答案: