https://developers.google.com/chrome-developer-tools/docs/javascript-debugging#breakpoints-dynamic-javascript
在js文件中加以下注释://@ sourceURL=jsName(随便取),就可以在chrome中显示对应的js文件,方便debug
注意:空格不能少
Note: Notice the "//@ sourceURL=dynamicScript.js" line at the end of dynamicScript.js file. This technique gives a name to a script created with eval, and will be discussed in more detail in the Source Maps section. Breakpoints can be set in dynamic JavaScript only if it has a user supplied name.
目前系统中不推荐eval