diff --git a/ ubuntu-jdk8.md b/ ubuntu-jdk8.md
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-下载解压安装包
-```
-cd /usr/local
-```
-```
-wget https://mirrors.huaweicloud.com/java/jdk/8u202-b08/jdk-8u202-linux-x64.tar.gz
-```
-```
-tar -zvxf jdk-8u202-linux-x64.tar.gz
-```
-
-配置环境变量
-```
-vim /etc/profile
-```
-
-复制粘贴
-```
-export JAVA_HOME=/usr/local/jdk1.8.0_202
-export CLASSPATH=$:CLASSPATH:$JAVA_HOME/lib/
-export PATH=$PATH:$JAVA_HOME/bin
-```
-
-刷新
-```
-source /etc/profile
-```
-
-验证
-```
-java -version
-```
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