------->JDK歷史版本下載：
http://www.oracle.com/technetwork/java/javase/archive-139210.html
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------->eclipse版本下載：
https://www.eclipse.org/downloads/eclipse-packages/
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------->CentOS映像文件阿里雲下載地址
https://mirrors.aliyun.com/centos/7.7.1908/isos/x86_64/
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------->apache相關軟件下載地址：
http://archive.apache.org/dist/
https://archive.apache.org/dist/hadoop/common/
https://hadoop.apache.org/docs/r2.7.3 <---------hadoop2.7.3文檔地址
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------->谷歌瀏覽器下載地址：
https://api.shuax.com/tools/getchrome
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------->mysql下載地址：
https://downloads.mysql.com/archives/installer/
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------->鳥叔的私房菜：
http://linux.vbird.org/linux_basic/
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