我正在尝试构建一个简单的Web应用程序，它接受大量的二进制输入，并计算一个布尔公式，然后输出。我做错了什么？
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var vione = document.getElementById("ione");
var vitwo = document.getElementById("itwo");
var vithree = document.getElementById("ithree");
window.addEventListener("load", function() {
if (document.getElementById("button") != null) {
document.getElementById("button").addEventListener("click", test(vione, vitwo, vithree));
}
});
function test(one, two, three) {
return (vione && vitwo || vithree);
console.log(vione);
console.log(ooone)
}
document.getElementById("ooone").innerHTML = test(vione, vitwo, vithree);<input type="number" id="ione" name="nione" min="0" max="1">
<input type="number" id="itwo" name="nitwo" min="0" max="1">
<input type="number" id="ithree" name="nithree" min="0" max="1">
<button type="button" id="button">GO!</button>
<p id="ooone"></p>null
元素需要存在，所以您使用一个加载事件侦听器，但元素在外部
需要界定范围。
number字段不返回二进制
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const dec2bin = dec => (dec >>> 0).toString(2);
window.addEventListener("load", function() {
const vione = document.getElementById("ione"),
vitwo = document.getElementById("itwo"),
vithree = document.getElementById("ithree"),
button = document.getElementById("button")
if (button) {
button.addEventListener("click", test);
}
function test() {
document.getElementById("ooone").innerHTML = dec2bin(vione.value) && dec2bin(vitwo.value) || dec2bin(vithree.value)
}
});<input type="number" id="ione" name="nione" min="0" max="1">
<input type="number" id="itwo" name="nitwo" min="0" max="1">
<input type="number" id="ithree" name="nithree" min="0" max="1">
<button type="button" id="button">GO!</button>
<p id="ooone"></p>