我正在進行簡單的HTML5畫布練習並遇到了一些障礙。即使在checkAnswer函數中返回false後,我也無法讓頁面停止刷新。我已經搜索了高和低的答案,並嘗試了一些不同的東西,但似乎沒有任何工作。任何援助將不勝感激。我在這裏創建了一個JSFiddle http://jsfiddle.net/geekch1ck/ezSyf/頁面刷新即使返回false
我也不明白「{」錯誤「:」請在JSFiddle上使用POST請求「}」。
非常感謝您的幫助。我確信我錯過了一些相當簡單的事情,但是我無法在任何已經梳理的書籍或網站中找到它。
這裏是爲那些不想惹的jsfiddle
function getRandInt (min, max){
return Math.floor(Math.random()*(max-min+1)) + min;
}
function checkAnswer(guess, answer){
if (guess == answer){
alert("Correct");
setTimeout(drawText(equation),3000);
return true;
}
else{
alert("Try Again");
return false;
}
}
function drawCanvas(equation){
//draw the Canvas
canvas = document.getElementById('myCanvas');
context = canvas.getContext('2d');
drawText(equation);
}
function drawText(equation){
//add the text to the canvas
context.font = '40pt Veranda';
context.fillText(equation, 50, 100);
}
$(document).ready(function(){
drawCanvas(equation);
$("form").submit(function(){
guess = document.getElementById("guess").value;
checkAnswer(guess, answer);
});
});
</script>
</head>
<body>
<canvas id = "myCanvas" width = "200" height = "200" style = "border:1px solid #000000;">
</canvas>
<form action="">
<p>What is the answer? <input type = "text" id = "guess" name = "guess"></p>
</form>
</body>
</html>
真的! - > http://jsfiddle.net/ezSyf/2/ – adeneo
甚至加了一些遞歸的計算 - > http://jsfiddle.net/ezSyf/3/ – adeneo