SOURCE

cola(function(model){
  model.action({
    info:function(){
      cola.alert("Hello World !!", {
                            level: cola.MessageBox.level.INFO
                        })
    },
    warning:function(){
      cola.alert("Hello World !!", {
                            level: cola.MessageBox.level.WARNING
                        })
    },
    error:function(){
      cola.alert("Hello World !!", {
                            level: cola.MessageBox.level.ERROR
                        })
    },
    confirm:function(){
      cola.confirm("Hello World !!",{
        onApprove:function(){
          console.log("yes")
        },
        onDeny:function(){
          console.log("no")
        }
      })
    }
    
  })
  
});

<c-button caption="消息" click="info"></c-button>
<c-button caption="警告" click="warning"></c-button>
<c-button caption="错误" click="error"></c-button>
<c-button caption="确认框" click="confirm"></c-button>