3 计算属性和侦听器

	
		
		
		
	
	
		

			
Original message: "{
    { message }}"
			
Computed reversed message: "{
    { reversedMessage }}"
			
Computed reversed message2: "{
    { reversedMessage2() }}"
			
now: "{
    { now }}"
		
		

			
{
    { fullName }}
		
		

			
{
    { fullName }}
		
		

			
First name:{
    { firstName }}
			
Last name: {
    { lastName }}
			
Full name: {
    { fullName }}
		
		

			

				Ask a yes/no question:
				
			
			
{
    { answer }}