别人fork我的repo，然后给我提交pr：others_name:master → origin:master

# 查看本地仓库的remote
anny@annys-MacBook-Air djwcb % git remote -v
origin	https://github.com/GZhonghui/djwcb.git (fetch)
origin	https://github.com/GZhonghui/djwcb.git (push)

# 添加remote
# <typenoob>这个是随便取的名字，能区分开就OK，建议使用对方的用户名
anny@annys-MacBook-Air djwcb % git remote add typenoob https://github.com/typenoob/djwcb.git
anny@annys-MacBook-Air djwcb % git remote -v                                                
origin	https://github.com/GZhonghui/djwcb.git (fetch)
origin	https://github.com/GZhonghui/djwcb.git (push)
typenoob	https://github.com/typenoob/djwcb.git (fetch)
typenoob	https://github.com/typenoob/djwcb.git (push)

# 删除remote
anny@annys-MacBook-Air djwcb % git remote -v
origin	https://github.com/GZhonghui/djwcb.git (fetch)
origin	https://github.com/GZhonghui/djwcb.git (push)
typenoob	https://github.com/typenoob/djwcb.git (fetch)
typenoob	https://github.com/typenoob/djwcb.git (push)
anny@annys-MacBook-Air djwcb % git remote remove typenoob
anny@annys-MacBook-Air djwcb % git remote -v             
origin	https://github.com/GZhonghui/djwcb.git (fetch)
origin	https://github.com/GZhonghui/djwcb.git (push)

# 拉一个pr到本地，本地分支叫pr-1（1是pr的ID）
anny@annys-MacBook-Air djwcb % git fetch origin pull/1/head:pr-1  
remote: Enumerating objects: 40, done.
remote: Counting objects: 100% (34/34), done.
remote: Compressing objects: 100% (8/8), done.
remote: Total 24 (delta 16), reused 24 (delta 16), pack-reused 0 (from 0)
Unpacking objects: 100% (24/24), 2.99 KiB | 127.00 KiB/s, done.
From https://github.com/GZhonghui/djwcb
 * [new ref]         refs/pull/1/head -> pr-1
anny@annys-MacBook-Air djwcb % git checkout pr-1
Switched to branch 'pr-1'

# 也可以把对方的分支都fetch下来
anny@annys-MacBook-Air djwcb % git fetch typenoob
From https://github.com/typenoob/djwcb
 * [new branch]      add-search-bar -> typenoob/add-search-bar
 * [new branch]      master         -> typenoob/master

# 然后在这个pr-1上测试
# 注意：这个pr-1只是个本地测试分支，一般不需要push到服务器

需要安装GitHub CLI

如果对方的PR没有什么大问题，但是需要一些小修改，可以：

1. 留言要对方修改PR（应该可以直接修改吧，提交新的commit，不用关闭PR重新开）
2. 自己向PR提交commit，需要自己有修改权限（如下图，应该是对方提交PR的时候设定的）

# 使用Github CLI
# 需要Token
anny@annys-MacBook-Air djwcb % export GH_TOKEN=xxx
# 直接checkout到pr
anny@annys-MacBook-Air djwcb % gh pr checkout 1
From https://github.com/GZhonghui/djwcb
 * [new ref]         refs/pull/1/head -> typenoob/master
Switched to branch 'typenoob/master'
# 修改，添加commit
# 推送到对方的master（提出合并的分支）！居然可以这样做的嘛
git push https://github.com/typenoob/djwcb.git HEAD:master
# 然后在Github的网页上，就可以看到PR更新了（自己增加了commit）

# 错误示范：使用git推送一个pr-1的分支
# 这会在服务器上创建一个新的分支pr-1，但是和对方的pr没有绑定关系
anny@annys-MacBook-Air djwcb % git push origin pr-1
Enumerating objects: 49, done.
Counting objects: 100% (41/41), done.
Delta compression using up to 8 threads
Compressing objects: 100% (29/29), done.
Writing objects: 100% (29/29), 3.64 KiB | 3.64 MiB/s, done.
Total 29 (delta 20), reused 0 (delta 0), pack-reused 0 (from 0)
remote: Resolving deltas: 100% (20/20), completed with 8 local objects.
remote: 
remote: Create a pull request for 'pr-1' on GitHub by visiting:
remote:      https://github.com/GZhonghui/djwcb/pull/new/pr-1
remote: 
To https://github.com/GZhonghui/djwcb.git
 * [new branch]      pr-1 -> pr-1