好的,我正在嘗試編寫另一個程序來練習我的Javascript,並且我遇到了另一個障礙。目前,該計劃很簡單。從種族列表(當前僅限於「瑞典人」和「意大利人」)的下拉列表中進行選擇,然後該程序將寫出他們(刻板印象)外觀的簡短描述,並張貼圖片。或者說,更改默認的「神祕人」圖片。通過修改「src」不會改變圖片
第一部分正常工作。如果您選擇「瑞典人」或「意大利語」,文字會有所不同。圖片部分沒有。圖像不會改變其默認的「神祕人」圖片。這是爲什麼?
var ethnicities = [{
name: "Swede",
eyecolor: "blue",
hairtex: "straight",
fp: 1,
pic: "Swedish.png"
},
{
name: "Italian",
eyecolor: "brown",
hairtex: "curly",
fp: 2,
pic: "Italian.png"
}
];
function description() {
var desc = "The " + ethnicities[document.EPF.EPDD.value].name +
" is " + ethnicities[document.EPF.EPDD.value].eyecolor + "-eyed and " +
ethnicities[document.EPF.EPDD.value].hairtex + "-haired." +
"";
document.getElementById("demo").innerHTML = desc;
document.getElementbyId("picture").src = ethnicities[document.EPF.EPDD.value].pic;
//so weird, it just doesn't chnage it. It doesn't matter what I put on the
//right of the equal sign.
}
<p>Ethnicity presets:</p>
<form name="EPF">
<select name="EPDD">
<option value="0">Swede</option>
<option value="1">Italian</option>
</select>
<input type="button" value="Submit" onClick="description()">
</form>
<p id="demo"> </p>
<img id="picture" src="Mystery man.png" alt="unknown">
錯字,'getElementbyId'應該是'getElementById' – adeneo
哦,我的天哪,謝謝!令人驚奇的是,這些小東西讓你編程! –
您應該刪除它。 – Rob