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test5.js
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50 lines (37 loc) · 1.23 KB
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/**
* Created by xiaochaochao on 2017/6/8.
*/
var events = require('events');
var eventEmitter = new events.EventEmitter();
var listener1 = function listener1(){
console.log('监听器 listener1 执行');
}
var listener2 = function listener2() {
console.log('监听器 listener2 执行');
}
eventEmitter.addListener('connection',listener1);
eventEmitter.on('connection',listener2)
var eventListeners = require('events').EventEmitter.listenerCount(eventEmitter,'connection');
var L = eventEmitter.lisenerCount('connection');
console.log(eventListeners + "个监听器监听连接事件");
console.log("程序执行完毕")
//eventEmitter.on('someEvent',function(arg1,arg2){
// console.log('listener1',arg1 , arg2);
//});
//eventEmitter.on('someEvent',function(arg1,arg2){
// console.log('listener2',arg1,arg2);
//});
//eventEmitter.emit('someEvent','arg1 参数','arg2参数');
//var connectHandler = function connected() {
// console.log('连接成功');
//
// eventEmitter.emit('data_received');
//}
//
//eventEmitter.on('connection',connectHandler);
//eventEmitter.on('data_received',function(){
// console.log('数据接受成功');
//});
//
//eventEmitter.emit('connection');
//console.log("程序执行完毕");