选择正确的单选按钮后如何显示图像? (来自javascript) [英] How to display an image when the correct radio button is selected? (From javascript)
问题描述
我想知道如何在选择正确的单选按钮时显示图像。我的单选按钮是正确的,但是当选择了相关的正确单选按钮时,我找不到任何显示图像的方法。帮助我,如果你可以
我尝试过:
< pre lang =c#> function check_value(){
switch (document.test.field。 value ){
case one :
document.getElementById( imagetest)。innerHTML = < span class =code-string> < img src ='images / firstimage.png'>;
break ;
case two :
document.getElementById( imagetest)。innerHTML = < img src ='images / secondimage.png'>;
break ;
case three :
document.getElementById( imagetest)。innerHTML = < img src ='images / thirdimage.png'>;
break ;
}
}
一个
两个
三个
快速Google搜索: javascript更改图片选项选择 [ ^ ]出现了这个:如何使用javascript交换选项更改的图像? - 堆栈溢出 [ ^ ]
>
I wanna know how display an image when the correct radio button is selected.I got the radio buttons correct but I can't find any way to display an image when the relevant correct radio button is selected. help me if u can
What I have tried:
function check_value(){
switch(document.test.field.value){
case "one":
document.getElementById("imagetest").innerHTML = "<img src='images/firstimage.png'>";
break;
case "two":
document.getElementById("imagetest").innerHTML = "<img src='images/secondimage.png'>";
break;
case "three":
document.getElementById("imagetest").innerHTML = "<img src='images/thirdimage.png'>";
break;
}
}
one
two
three
A quick Google Search: javascript change image on option selection[^] turned up this: How to use javascript to swap images with option change? - Stack Overflow[^]
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