单选按钮和输入字段

2022-01-21 00:00:00 input radio-button forms html

我想设置一个表单，用户可以在其中从一组单选按钮中进行选择，如果他们不喜欢任何选择，他们可以使用最后一个单选按钮，该按钮将有一个文本字段，他们可以在其中输入自定义文本.

I wanna set up a form where users can choose from a set of radio buttons and if they dont like any choice they can use the last radio button which will have a text field to it where they can enter the custom text.

我在一些网站上看到过这个.只是想知道它是在哪里以及如何实现的

i have seen this on a few sites. just wondering where and how it was implemented

推荐答案

我给你做了个例子，这是你想要的吗?http://www.jsfiddle.net/T7gE7/

I made you an example, is this what you wanted? http://www.jsfiddle.net/T7gE7/

var temp = '';
function disableTxt() {
    var field = document.getElementById("other");
    if(field.value != '') {
        temp = field.value;
    }
    field.style.display = "none";
    field.value = '';
}
function enableTxt() {
    document.getElementById("other").style.display = "inline";
    document.getElementById("other").value = temp;
}

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