<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[YHson的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/YHson</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; YHson]]></copyright><item><title><![CDATA[为什么用Object.prototype.toString.call(obj)检测对象类型?]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/80609470</link><guid>https://blog.youkuaiyun.com/YHson/article/details/80609470</guid><author>YHson</author><pubDate>Thu, 07 Jun 2018 15:00:05 +0800</pubDate><description><![CDATA[转载 https://www.cnblogs.com/youhong/p/6209054.html为什么用Object.prototype.toString.call(obj)检测对象类型?最近做了做一些js面试25 Essential JavaScript Interview Questions*，其中第一道是：使用typeof bar === &quot;object&quot;检测”bar”是否为对象有什么缺点...]]></description><category></category></item><item><title><![CDATA[HBuilder常用快捷键]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/80608917</link><guid>https://blog.youkuaiyun.com/YHson/article/details/80608917</guid><author>YHson</author><pubDate>Thu, 07 Jun 2018 14:34:35 +0800</pubDate><description><![CDATA[转到class的定义处：'Ctrl+Alt+D' （按Alt点击鼠标也可以）]]></description><category></category></item><item><title><![CDATA[费曼学习法的笔记]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/80008828</link><guid>https://blog.youkuaiyun.com/YHson/article/details/80008828</guid><author>YHson</author><pubDate>Wed, 25 Apr 2018 08:32:02 +0800</pubDate><description><![CDATA[费曼的故事：1、学习时和自己熟悉的事物类比，更容易类比，例如恐龙身高几层楼高，25英尺2、费曼智商120，第一次花了很多时间解决了一个很复杂的问题，如果有许多人重复问这个问题，之后就只用花很少时间解决， 所以大家都认为他是天才。3、费曼和她妻子的故事：知道妻子得了绝症，还是和他结婚了。费曼学习法：第一步：制定目标将目标任务分解成理解的，需掌握的内容，并记录在纸上，理解并记忆1、目标制定的方法：要强...]]></description><category></category></item><item><title><![CDATA[js中json的操作]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/78101840</link><guid>https://blog.youkuaiyun.com/YHson/article/details/78101840</guid><author>YHson</author><pubDate>Thu, 19 Apr 2018 19:43:56 +0800</pubDate><description><![CDATA[ 1、json对象的遍历var json2={&quot;name&quot;:&quot;txt1&quot;,&quot;name2&quot;:&quot;txt2&quot;};for(var js2 in json2){

alert( js2+&quot;=&quot;+json2[js2]);

}2、获取json对象的长度var jslength=0;

for(var js2 in json2){

jslength++;

}
把这段代码写成一个方法，以后调用就行了：func...]]></description><category></category></item><item><title><![CDATA[oracle10客户端在window10的安装]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/79634978</link><guid>https://blog.youkuaiyun.com/YHson/article/details/79634978</guid><author>YHson</author><pubDate>Wed, 21 Mar 2018 09:30:05 +0800</pubDate><description><![CDATA[步骤如下：1、双击安装程序，点击下一步，在选择client或administrator中，选择administrator，然后继续下一步完成安装。2、安装完成后，根据此篇博文http://blog.youkuaiyun.com/DKZhu/article/details/6027933，配置。3、根据此篇博文，进行配置，https://www.cnblogs.com/lr393993507/p/6055005...]]></description><category></category></item><item><title><![CDATA[mac系统方法操作记录]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/79298253</link><guid>https://blog.youkuaiyun.com/YHson/article/details/79298253</guid><author>YHson</author><pubDate>Fri, 09 Feb 2018 14:40:52 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[js的数组与字符串互相转换]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/78196000</link><guid>https://blog.youkuaiyun.com/YHson/article/details/78196000</guid><author>YHson</author><pubDate>Tue, 10 Oct 2017 18:48:58 +0800</pubDate><description><![CDATA[一、数组转字符串

需要将数组元素用某个字符连接成字符串，示例代码如下：




?





1

2

3




var

a, b;

a
 = new

Array(0,1,2,3,4);

b
 = a.join("-");









二、字符串转数组

实现方法为将字符串按某个字符切割成若]]></description><category></category></item><item><title><![CDATA[js中json的操作]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/78102363</link><guid>https://blog.youkuaiyun.com/YHson/article/details/78102363</guid><author>YHson</author><pubDate>Tue, 26 Sep 2017 16:41:34 +0800</pubDate><description><![CDATA[转载+总结
1、json对象的遍历

var json2={"name":"txt1","name2":"txt2"};
for(var js2 in json2){

alert( js2+"="+json2[js2]);

}
2、获取json对象的长度


var jslength=0;

for(var js2 in json2){

jslength++;

}


]]></description><category></category></item><item><title><![CDATA[关于spring注解的配置文件说明context:annotation-config和context:component-scan]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/77931360</link><guid>https://blog.youkuaiyun.com/YHson/article/details/77931360</guid><author>YHson</author><pubDate>Mon, 11 Sep 2017 11:26:55 +0800</pubDate><description><![CDATA[作者：wuxinliulei
链接：https://www.zhihu.com/question/39356740/answer/80926247
来源：知乎
著作权归作者所有。商业转载请联系作者获得授权，非商业转载请注明出处。


在基于主机方式配置Spring的配置文件中，你可能会见到




这样一条配置，他的作用是式地向 Spring 容器注册

Autowired]]></description><category></category></item><item><title><![CDATA[myeclipse,java报错记录]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/77430149</link><guid>https://blog.youkuaiyun.com/YHson/article/details/77430149</guid><author>YHson</author><pubDate>Sun, 20 Aug 2017 16:44:14 +0800</pubDate><description><![CDATA[(1)数据库插入记录失败：因为外键的完整约束性无法满足，其中`gwzsgl`是数据库实例名，`tbl_address`是表名, `user_id` 是外键字段名，`tbl_user` 是外键引用的表名，`id`是外键对应的在`tbl_user`的主键字段名。
com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationExce]]></description><category></category></item><item><title><![CDATA[myeclipse快捷键]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/77341738</link><guid>https://blog.youkuaiyun.com/YHson/article/details/77341738</guid><author>YHson</author><pubDate>Thu, 17 Aug 2017 21:50:53 +0800</pubDate><description><![CDATA[control+shift+o   引入类的引用]]></description><category></category></item><item><title><![CDATA[json字符串转js对象取值]]></title><link>https://blog.youkuaiyun.com/YHson/article/details/77319763</link><guid>https://blog.youkuaiyun.com/YHson/article/details/77319763</guid><author>YHson</author><pubDate>Thu, 17 Aug 2017 11:36:16 +0800</pubDate><description><![CDATA[jSON 实例 - 来自字符串的对象

创建包含 JSON 语法的 JavaScript 字符串：
var txt = '{ "employees" : [' +
'{ "firstName":"Bill" , "lastName":"Gates" },' +
'{ "firstName":"George" , "lastName":"Bush" },' +
'{ "firstName":"]]></description><category></category></item></channel></rss>