https://help.aliyun.com/document_detail/28657.html?spm=a2c4g.11174283.6.575.2c005662zHm4FA
APP臨時授權
https://help.aliyun.com/document_detail/28656.html?spm=a2c4g.11186623.6.574.7aa878a5sokTFb
企業ram使用者管理和分權
http://gosspublic.alicdn.com/ram-policy-editor/index.html?spm=a2c4g.11186623.2.11.200740afF6tCXm
自定義ram權限
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