How to use the evt.getBasePath function in evt

setUserDataPath: function(userId) {
		var me = this;
		// 判断是否存在, 不存在则创建dir
		try {
			fs.mkdirSync(Evt.getBasePath() + '/data/');
		}
		catch(e) {};
		try {
			fs.mkdirSync(Evt.getBasePath() + '/data/' + this.getCurActiveUserId());
		} catch(e) {
		}
		try {
			fs.mkdirSync(Evt.getBasePath() + '/data/' + this.getCurActiveUserId() + '/images');
		} catch(e) {
		}
		try {
			fs.mkdirSync(Evt.getBasePath() + '/data/' + this.getCurActiveUserId() + '/attachs');
		} catch(e) {
		}
	},

deleteUserImagesAndAttachsPath: function (userId) {
		var me = this;

		// 防止误删
		if (!Evt.getBasePath()) {
			return;
		}

		var imagesAndAttachBasePath = me.getUserImagesAndAttachBasePath(userId);
		if (imagesAndAttachBasePath) {
			Common.deleteFolderRecursive(imagesAndAttachBasePath);
		}
	},

setUserDataPath: function(userId) {
		var me = this;
		// 判断是否存在, 不存在则创建dir
		try {
			fs.mkdirSync(Evt.getBasePath() + '/data/');
		}
		catch(e) {};
		try {
			fs.mkdirSync(Evt.getBasePath() + '/data/' + this.getCurActiveUserId());
		} catch(e) {
		}
		try {
			fs.mkdirSync(Evt.getBasePath() + '/data/' + this.getCurActiveUserId() + '/images');
		} catch(e) {
		}
		try {
			fs.mkdirSync(Evt.getBasePath() + '/data/' + this.getCurActiveUserId() + '/attachs');
		} catch(e) {
		}
	},

addImage: function(path, callback) {
		var me = this;
		var absolutePath = Evt.getBasePath() + '/' + path;
		me._addImage(Common.objectId(), absolutePath, callback);
	},

addImage: function(path, callback) {
		var me = this;
		var absolutePath = Evt.getBasePath() + '/' + path;
		me._addImage(Common.objectId(), absolutePath, callback);
	},

addImage: function(path, callback) {
		var me = this;
		var absolutePath = Evt.getBasePath() + '/' + path;
		me._addImage(Common.objectId(), absolutePath, callback);
	},

db.init = function (curUser, dbPath) {
    ipc.send('db-init', {
        curUser: curUser,
        dbPath: dbPath,
        dataBasePath: Evt.getBasePath()
    });
};