code: function(filesArr) {
  		// 读取package.json，将里面内容生成头信息
  		var data = fs.readFileSync('./package.json', 'utf8');
  		var packageObj = JSON.parse( data );
  
  		var headerStr = '/** \r\n';
  			headerStr += ' * ' + packageObj.name + ' v' + packageObj.version + '\r\n';
  			headerStr += ' * ' + packageObj.description + '\r\n';
  			headerStr += ' * author : ' + packageObj.author + '\r\n';
  			headerStr += ' * homepage : ' + packageObj.homepage + '\r\n';
  			headerStr += ' * bugs : ' + packageObj.bugs.url + '\r\n';
  			headerStr += ' **/ \r\n';
  
  
  		for (var i = 0; i < filesArr.length; i++){
  			var filePath = filesArr[i]
  			var data = fs.readFileSync(filePath, 'utf8');
  			data = headerStr  + data;
  			fs.writeFileSync(filePath, data);
  		}
  	}
docs: 文件处理入口
  @return {[type]} [description]