<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[zhangyangyang21的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/zhangyangyang21</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; zhangyangyang21]]></copyright><item><title><![CDATA[microchip]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142633796</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142633796</guid><author>zhangyangyang21</author><pubDate>Thu, 10 Oct 2024 09:59:12 +0800</pubDate><description><![CDATA[MPLAB X IDE 的安装、dspic芯片的简单操作]]></description><category></category></item><item><title><![CDATA[MPLAB X IDE 文件不存在于磁盘]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142780174</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142780174</guid><author>zhangyangyang21</author><pubDate>Wed, 09 Oct 2024 10:27:42 +0800</pubDate><description><![CDATA[这个原因是在文件下将.C.H文件转移到另一个文件夹下，重新打开MPLAB X IDE发现报错。将文件删除，重新加载进来。]]></description><category></category></item><item><title><![CDATA[MPLAB X 找不到头文件]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142779415</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142779415</guid><author>zhangyangyang21</author><pubDate>Wed, 09 Oct 2024 10:15:09 +0800</pubDate><description><![CDATA[原因：将文件转移到了Excluded Fiels中。解决方法转移到Included File。在找方法的过程中出现了。]]></description><category></category></item><item><title><![CDATA[MPLAB 编译出错]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142629518</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142629518</guid><author>zhangyangyang21</author><pubDate>Sun, 29 Sep 2024 10:34:46 +0800</pubDate><description><![CDATA[报错：cannot open linker script file p33Ak512Mps506.gld.00: No such file or directory。安装两个版本，这个DFP是手动导入的，可能两个版本的工具链冲突导致报错。]]></description><category></category></item><item><title><![CDATA[MPLAB X 工具链搜索不到工具链]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142627772</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/142627772</guid><author>zhangyangyang21</author><pubDate>Sun, 29 Sep 2024 09:41:38 +0800</pubDate><description><![CDATA[MPLAB X 工具链搜索不到工具链]]></description><category></category></item><item><title><![CDATA[e2studio 创建文件 No FSP versions installed]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/141264883</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/141264883</guid><author>zhangyangyang21</author><pubDate>Fri, 16 Aug 2024 17:19:45 +0800</pubDate><description><![CDATA[画线的报  No FSP versions installed。]]></description><category></category></item><item><title><![CDATA[MPLAB X IDE 编辑失败 recipe for target ‘build/default/production/newmainXC16.o‘ failed]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/141223389</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/141223389</guid><author>zhangyangyang21</author><pubDate>Thu, 15 Aug 2024 15:35:42 +0800</pubDate><description><![CDATA[1、2、]]></description><category></category></item><item><title><![CDATA[keil 出现 Cannot copy PDsc file to .Download folder.]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/116110786</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/116110786</guid><author>zhangyangyang21</author><pubDate>Fri, 09 Aug 2024 16:05:34 +0800</pubDate><description><![CDATA[pandas
导入文件
df = pd.read_FileType('FileName', names=['..', '..'])

csv是最通用的一种文件格式，它可以非常容易地被导入各种PC表格及数据库中。用逗号隔开，打开excel，逗号没了。

]]></description><category></category></item><item><title><![CDATA[matlab 工具箱使用ga出现小问题]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/124564897</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/124564897</guid><author>zhangyangyang21</author><pubDate>Wed, 04 May 2022 01:33:51 +0800</pubDate><description><![CDATA[运行start时弹出
未定义与 ‘double’ 类型的输入参数相对应的函数 ‘f’。

解决方法
在命令行输入 open f
原理：没找到路径。


]]></description><category></category></item><item><title><![CDATA[idea 中创建文件没有class 选项]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/123296737</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/123296737</guid><author>zhangyangyang21</author><pubDate>Sat, 05 Mar 2022 16:25:03 +0800</pubDate><description><![CDATA[问题

解决
2013是并不符合包名要求，换个符合的名字就行了。


]]></description><category></category></item><item><title><![CDATA[2021-11-07]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/121187485</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/121187485</guid><author>zhangyangyang21</author><pubDate>Sun, 07 Nov 2021 17:40:48 +0800</pubDate><description><![CDATA[for i = 1 : 30
    ahat = AR3(price);%preice27改为另一个数组
    price(end+1) = ahat(end);
end


function [ahat] = AR3(array)
%AR3 AR(n)预测后几十项值
%   n为AR(n)的参数设计
array = array';array = array(:);array= array';
 array1 = diff(array);
 array2 = diff(array1);
 d  = ar]]></description><category></category></item><item><title><![CDATA[java报错（Non-static method ‘show(yangyangjava.Phone)‘ cannot be referenced from a static context）]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/120833541</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/120833541</guid><author>zhangyangyang21</author><pubDate>Mon, 18 Oct 2021 20:10:25 +0800</pubDate><description><![CDATA[今天学习面向对象时报错
报错
Non-static method 'show(yangyangjava.Phone)' cannot be referenced from a static context

代码
public class InstanceTest {
    public static void main(String[] args) {
        //匿名对象的使用
        PhoneMall.show(new Phone());
    }
}

原因
在使用类时，应先将]]></description><category></category></item><item><title><![CDATA[关于java random的一个有趣现象]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/120660342</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/120660342</guid><author>zhangyangyang21</author><pubDate>Fri, 08 Oct 2021 21:26:36 +0800</pubDate><description><![CDATA[random生成数组的最大数会重复出现
在idea 的2021.2.1版本中用random赋值时，发现其数组的最大值会出现两次，在之后多次实验后，发现现象一直存在。
public class ArrayTest1 {
    public static void main(String[] args) {
        int[] arr = new int[20];
        for (int i = 0;i &lt; arr.length;i++){
            arr [i] =(]]></description><category></category></item><item><title><![CDATA[Intellij IDEA run为灰色]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/120572159</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/120572159</guid><author>zhangyangyang21</author><pubDate>Thu, 30 Sep 2021 20:55:07 +0800</pubDate><description><![CDATA[问题
本人刚下的Intellij IDEA，直接在Project 鼠标右键new了个Directory
在里面直接new了个File,文件格式为.java，运行时却发现run为灰色
点击下面的绿色run时

解决
1、Intellij IDEA 中的类要写在蓝色的src文件下
2、要新建文件，New的时Module这样就在该Module下src文件。
3、在src下New 个Class4、编译完成就可以运行了。

...]]></description><category></category></item><item><title><![CDATA[java在cmd上找不到或无法加载主类]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/119988862</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/119988862</guid><author>zhangyangyang21</author><pubDate>Mon, 30 Aug 2021 02:17:31 +0800</pubDate><description><![CDATA[解决办法
第一种（保证代码正确）
javac编辑class时要加上尾缀.java，
java执行时不用加上尾缀.class
javac Helloworld.java
java Helloworldshangtou

第二种（找不到class文件）
该种问题一般于CLASSPATH有关系
参考找不到文件目录

...]]></description><category></category></item><item><title><![CDATA[html学习笔记]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/119302093</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/119302093</guid><author>zhangyangyang21</author><pubDate>Wed, 11 Aug 2021 20:25:16 +0800</pubDate><description><![CDATA[标签及标签内容
&lt;A&gt;b&lt;/A&gt;#A为标签，b为标签内容


]]></description><category></category></item><item><title><![CDATA[树莓派第一次启动ip地址问题]]></title><link>https://blog.youkuaiyun.com/zhangyangyang21/article/details/119298034</link><guid>https://blog.youkuaiyun.com/zhangyangyang21/article/details/119298034</guid><author>zhangyangyang21</author><pubDate>Sun, 01 Aug 2021 14:49:46 +0800</pubDate><description><![CDATA[标题在按照正常的步骤的，课还是一直找不到树莓派的ip地址。
cmd中arp -a 重启路由器等都无法解决。
169是HDCP没分配给树莓派ip地址，我按照csdn、百度上的各种方法都没解决。
解决方法
我连接的wifi为不是路由器本身，而是它的信号加强器。
要连接路由器wifi就行了。

...]]></description><category></category></item></channel></rss>