Question

private void EtapaInicial_Click(object sender, EventArgs e)
    {
        EtapaInicialWasClicked = true;
    }

    private void panel_Click(object sender, EventArgs e)
    {
        if (EtapaInicialWasClicked)
        {
            panel1.BackgroundImage = Symbols.EtapaInicialbm;
            EtapaInicialWasClicked = false;
        }
    }

为什么我的按键不能在Mac上工作？任何人都可以告诉我如何在Mac上进行按键删除工作？

Answer 1

Backspace（8）和delete（46）在Mac上执行相同的操作。

更新的代码：

// keyboard down window check.
window.addEventListener("keydown", function(event) {
  onKeyDownHandler(event);
}, false);

function onKeyDownHandler(e)
{
  e.preventDefault();
  var focus_id = e.target.id;
  switch (e.keyCode) {
    case 46: // Delete
    case 8: // Backspace
      alert("Delete pressed");
      break;
  }
}

Answer 2

var input = document.getElementById('myInput');

input.onkeydown = function() {
    var key = event.keyCode || event.charCode;

    if( key == 8 || key == 46 )
        return false;
};

=＆GT;根据相关的Jquery标记 -

jQuery(function($) {
      var input = $('#myInput');
      input.on('keydown', function() {
        var key = event.keyCode || event.charCode;

        if( key == 8 || key == 46 )
            return false;
      });
});

如何在macbook上捕获删除按键

2 个答案: