组合模式

Posted 2021-02-14 tujw

// 组合模式

var MacroCommand = function () {
    return {
        commandsList : [],
        add : function (command) {
            this.commandsList.push(command);
        },
        execute : function () {
            for(var i = 0, command; command = this.commandsList[i]; i++ ) {
                command.execute();
            }
        }
    };
};

var openAcCommand = {
    execute : function () {
        console.log(‘打开空调‘);
    }
};

var openTvCommand = {
    execute : function () {
        console.log(‘打开电视‘);
    }
};

var openSoundCommand = {
    execute : function () {
        console.log(‘打开音响‘);
    }
};

var macorCommand = MacroCommand();
macorCommand.add(openTvCommand);
macorCommand.add(openSoundCommand);

var mainCommand = MacroCommand();

mainCommand.add(macorCommand);
mainCommand.add(openAcCommand);

mainCommand.execute();

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