9.1 事件系统

[RubyLouvre]

for (var i = paths.length; i--;) { //从上到下
          var path = paths[i]
          var fn = path.props[captured]
          if (typeof fn === 'function') {
              event.currentTarget = path.dom
              fn.call(path.dom, event)
              if (event._stopPropagation) {
                  break
              }
          }
      }

      for (var i = 0, n = paths.length; i < n; i++) { //从下到上
          var path = paths[i]
          var fn = path.props[bubble]
          if (typeof fn === 'function') {
              event.currentTarget = path.dom
              fn.call(path.dom, event)
              if (event._stopPropagation) {
                  break
              }

          }
      }

event应该改成e