捕获 KeyCode 时的键盘错误声音

Posted 2023-03-30

【中文标题】捕获 KeyCode 时的键盘错误声音

【英文标题】：Keyboard Error Sound when catching KeyCode

【发布时间】：2013-10-25 14:42:32

【问题描述】：

我正在使用捕获键盘输入的 javascript 进行编程，但问题是每次用户按下一个键时都会发出错误声音。我怎样才能禁用它？

【问题讨论】：

您介意向我们展示您捕获按键/按下事件的 JavaScript 代码吗？

@Polaris878 给你↓

【参考方案1】：

@Polaris878

function KeyPressed(e)

    if (!e) e = window.event;
    if (e.which)
    
        keycode = e.which
    
    else if (e.keyCode)
    
        keycode = e.keyCode
    
    switch (keycode)
    
    case 49:
        key = "1";
        break;
    case 50:
        key = "2";
        break;
    case 51:
        key = "3";
        break;
    case 52:
        key = "4";
        break;
    case 53:
        key = "5";
        break;
    case 54:
        key = "6";
        break;
    case 55:
        key = "7";
        break;
    case 56:
        key = "8";
        break;
    case 57:
        key = "9";
        break;
    case 48:
        key = "0";
        break;
    default:
        key = "";
        return false;
        break
    
    if (keys == "NULL")
    
        keys = key
    
    else
    
        keys = keys + key
     if (keys.length >= 5)
    
        document.formular.submit();
    
    document.formular.code.value = keys;

var keys = "";
document.onkeydown = KeyPressed