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                            ### （1）JDK安裝教程

創建系統變量JAVA_HOME，值為JDK安裝路徑
```powershell
C:/Program Files/Java/jdk1.8.0_181
```
創建系統變量CLASSPATH
```powershell
.;%JAVA_HOME%/lib;%JAVA_HOME%/lib/tools.jar
```
cmd使用命令java，javac驗證安裝是否完成
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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