學習目標：
熟練學習Java的相關知識，較為基礎 理論知識為多，大概掠過即可，
學習內容：
1、 Java概述
1、簡單來說Java就是一種高級語言，有se,we,ee等三大體系，不同的體系擁有不同的作用途徑，后期拔高再深入理解，
2、 JDK的使用
JDK是Java的開發環境工具，現在主要使用更加穩定的1.8版本，配置方式嗶哩嗶哩上有，
3、 系統環境變數
系統環境變數主要分為path和classpath兩種，在配置方面會有相應的檔案夾可以在其中一個之中運行，在提示命令符中進行除錯
4、 第一個Java程式
package no1;
public class no1 {
public static void main(String[] args) {
System.out.println("這是第一個程式");
}
}
５、Java的運行機制
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:root { --mermaid-font-family: "trebuchet ms", verdana, arial;}</style>
<style>#mermaid-svg-dxqUi3rT1nDXWdVZ {
color: rgba(0, 0, 0, 0.75);
font: ;
}</style>
hello worder.java源檔案
編譯器
hello worder.class位元組碼檔案
決議器
機器碼檔案
計算機
主要操作在Java虛擬機中進行運行不是通過作業系統進行運行的，所以可以進行庫平臺操作，實作跨平臺運行，
６、Eclipse開發工具
由IBM公司制作的開發工具，為方便開發人員的一種工具，下載安裝即可，較為基礎不多BB，
學習時間：
2021年8月1日18點09分
學習產出：
提示：這里統計學習計劃的總量
