当只调用git tag <TAGNAME>而没有任何附加参数时，git将从你当前的HEAD(即你当前分支的HEAD)创建一个新标签。当向这个分支添加额外的提交时，分支HEAD将跟上这些新的提交，而标记总是引用相同的提交。

当调用git标签<TAGNAME> <COMMIT>时，你甚至可以指定使用哪个提交来创建标签。

无论如何，标记仍然只是指向某个提交(而不是分支)的“指针”。

CharlesB的回答和helmbert的回答都很有用，但我花了一些时间来理解它们。 这是另一种表达方式:

A tag is a pointer to a commit, and commits exist independently of branches. It is important to understand that tags have no direct relationship with branches - they only ever identify a commit. That commit can be pointed to from any number of branches - i.e., it can be part of the history of any number of branches - including none. Therefore, running git show <tag> to see a tag's details contains no reference to any branches, only the ID of the commit that the tag points to. (Commit IDs (a.k.a. object names or SHA-1 IDs) are 40-character strings composed of hex. digits that are hashes over the contents of a commit; e.g.: 6f6b5997506d48fc6267b0b60c3f0261b6afe7a2)

Branches come into play only indirectly: At the time of creating a tag, by implying the commit that the tag will point to: Not specifying a target for a tag defaults to the current branch's most recent commit (a.k.a. HEAD); e.g.: git tag v0.1.0 # tags HEAD of *current* branch Specifying a branch name as the tag target defaults to that branch's most recent commit; e.g.: git tag v0.1.0 develop # tags HEAD of 'develop' branch (As others have noted, you can also specify a commit ID explicitly as the tag's target.) When using git describe to describe the current branch: git describe [--tags] describes the current branch in terms of the commits since the most recent [possibly lightweight] tag in this branch's history. Thus, the tag referenced by git describe may NOT reflect the most recently created tag overall.

如果你通过例如。

git tag v1.0

标记将引用您当前所在分支的最近一次提交。你可以改变分支并在那里创建一个标签。

你也可以在标记时引用另一个分支，

git tag v1.0 name_of_other_branch

这将为另一个分支的最近提交创建标记。

或者，通过直接引用某个提交的SHA1，您可以将标记放在任何地方，无论哪个分支

git tag v1.0 <sha1>

如果你想标记你所在的分支，那么输入:

git tag <tag>

用:

git push origin --tags

当只调用git tag <TAGNAME>而没有任何附加参数时，git将从你当前的HEAD(即你当前分支的HEAD)创建一个新标签。当向这个分支添加额外的提交时，分支HEAD将跟上这些新的提交，而标记总是引用相同的提交。

当调用git标签<TAGNAME> <COMMIT>时，你甚至可以指定使用哪个提交来创建标签。

无论如何，标记仍然只是指向某个提交(而不是分支)的“指针”。

我们可以为一些过去的提交创建一个标签:

git tag [tag_name] [reference_of_commit]

eg:

git tag v1.0 5fcdb03