function addBalls(x,y,num){
?for(var i=0;i<digit[num].length;i++){
??console.log(num + "? " + digit[num].length + " "+ digit[num][i].length);
??for(var j=0;j<digit[num][i].length;j++){
???if(digit[num][i][j] == 1){
????var aBall = {
?????x:x+j*2*(RADIUS+1)+(RADIUS+1), //不太理解畫橫線的地方
?????y:y+i*2*(RADIUS+1)+(RADIUS+1),
?????g:1.5+Math.random(),
?????vx:Math.pow(-1,Math.ceil(Math.random()*1000))*4,
?????vy:-5,
?????color:colors[Math.floor(Math.random()*colors.length)]
????}
????balls.push(aBall);
???}
??}
?}
}