在编译之后的bin文件夹下的index.html文件增加了js引用，如下
<!--导入math.js包-->
<script type="text/javascript" src='math.min.js'></script>
<!--导入自定义计算工具包-->
<script type="text/javascript" src='math.self.js'></script>
打包之后，发生的bug如下：
math is not defined
ReferenceError: math is not defined
at http://127.0.0.1:19768/game/code.js:60:1
at require (http://127.0.0.1:19768/game/__dev__/WAGame.js:1:78871)
at http://127.0.0.1:19768/game/__dev__/WAGame.js:1:78480
at http://127.0.0.1:19768/game/game.js:4:1
at require (http://127.0.0.1:19768/game/__dev__/WAGame.js:1:78871)
at <anonymous>:1:1
