renx4 - プログラム倉庫

var x=new Array();
var y=new Array();
var number_p;
 
function sample(){
 
  var canvas = document.getElementById('memo');
var context = canvas.getContext('2d');
var width = img.width;
var height = img.height;
canvas.width = width;
canvas.height = height;
context.drawImage(img, 0, 0);
 
}