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嗨,我想用畫布中的按鈕繪製圖像。但我無法畫出清晰的畫布。所以;用按鈕繪製圖像
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Başlıksız Belge</title>
</head>
<body>
<input type="button" id="b1" value="ciz">
<canvas id="canvas" height="300" width="600" style="border: solid;background-color: brown; " >Eski Sürüm Tarayıcı . </canvas>
<script>
\t var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
var b1 =document.getElementById("b1");
var image = new Image(60, 45); // using optional size for image
var kontrol;
\t
\t
image.src = '/pika.png'; //it is in my pc
\t
image.onload = function(){ // i don't want draw the image on load
\t kontrol=true;}
\t
\t b1.onclick=function(){ // i want draw with button
\t \t if(kontrol=true){
\t \t
ctx.drawImage(image, 0, 0);
\t \t }
\t }
\t </script>
</body>
</html>
當我上載功能,圖像嘗試它是工作,但我想用按鈕