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	2.3 notes
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| ### 2.3.1 | ||||
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| git来说每次提交都创建一个commit对象,commit对象下有两个属性`tree` `parent`,用ID来表示,给定ID就能查看对象的类型是哪个,用`git cat-file -t <id>`来查看对象属性类型 | ||||
| `commit` | ||||
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| `tree`对象下面对每个文件创建一个blob对象,blob对象里存的就是文件内容 | ||||
							
								
								
									
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