http://closure-compiler.appspot.com/home
我用的这个
yui compressor有问题在我这里ooooooooooooooopppppppppppppppppppppppppppppppppppppppppppppppsssssssssssssssssssssssssssssssssssssssssssss
refference;
http://ka-yue.com/blog/google-javascript-closure-compiler