CocosCreator/resources/app.asar.unpacked/docs/html/getting-started/quick-start.html
该页面里
getNewStarPosition: function () {
var randX = 0;
// According to the position of the ground level and the main character's jump height, randomly obtain an anchor point of the star on the y axis
var randY = this.ground + cc.random0To1() * this.player.getComponent('Player').jumpHeight + 50;
// ↑这里错了
// according to the width of the screen, randomly obtain an anchor point of star on the x axis
var maxX = this.node.width/2;
randX = cc.randomMinus1To1() * maxX;
// return to the anchor point of the star
return cc.p(randX, randY);
}