我不明白如何打印从数据库中查询到的数据。
例如:
window.addEventListener("keydown", checkKeyPressed, false);
var keyMap = {
"81": "enklyd", //q
"87": "lyd1", //w
"69": "lyd2", //e
"82": "lyd3", //r
"84": "lyd4", //t
"89": "lyd5", //y
};
var prevPlayed = null, target = null, prevTarget = null;
function checkKeyPressed(evt) {
prevTarget = document.getElementById(keyMap[prevPlayed])
target = document.getElementById(keyMap[evt.keyCode]);
if (prevPlayed !== null && prevTarget !== null)
prevTarget.pause();
if (keyMap[evt.keyCode] && target !== null) {
target.currentTime = 0;
target.play();
}
prevPlayed = evt.keyCode;
}
因此,我创建了此功能,以选择数据库中仍有库存的所有产品。但是,如何在数据库中向用户显示这些产品?