其原因是 可能是 canvas 元素的问题 将canvas加入到div元素中就可以解决。
<html lang="en">
<head>
<Meta charset="utf-8">
<style>
body,canvas,div { -moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
-khtml-user-select: none;
-webkit-tap-highlight-color: rgba(0,0,0);
}
#Cocos2dGameContainer { position: absolute;
margin: 0;
overflow: hidden;
left: 0px;
top: 0px;
display: -webkit-Box;
-webkit-Box-orient: horizontal;
-webkit-Box-align: center;
-webkit-Box-pack: center;
}
</style>
<div id = "Cocos2dGameContainer" style="margin: auto;width: 100%;height: 100%;" class="egret-player" data-entry-class="Main" data-orientation="auto" data-scale-mode="showAll" data-frame-rate="60" data-content-width="640" data-content-height="960" data-show-paint-rect="false" data-multi-fingered="2" data-show-fps="false" data-show-log="false" data-show-fps-style="x:0,y:0,size:12,textColor:0xffffff,bgAlpha:0.9">
<canvas id="gameCanvas" width="640" height="960"></canvas>
</div>
