之前的文章（git建立版本庫）已經新增並提交了一個readme.txt檔案

• 現在我們繼續工作，修改一下readme.txt檔案內容
• 然後執行git status 看看結果

$ git status
On branch master
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

        modified:   readme.txt

no changes added to
 
 commit (use "git add" and/or "git commit -a")

git status 命令可以讓我們時刻掌握倉庫當前的狀態，上面的命令輸出告訴我們,readme.txt被修改過了，但還沒有準備提交的修改

• git diff檢視修改的內容

[email protected] MINGW64 /e/githome/learngit (master)
$ git diff
diff --git a/readme.txt b/readme.txt
index 7abd34b..3ba3ac2 100644
--- a/readme.txt
+++ b/readme.txt
 

@@ -1,2 +1,2 @@
 Git is one
-Git is two
\ No newline at end of file
+Git is two  改動
\ No newline at end of file

從上面的輸出可以看到，我們在第二行添加了“改動”漢字

• 知道了有什麼改動之後。提交就放心多了。git add

lvjingying@LAPTOP-VGTK7EP5 MINGW64 /e/githome/learngit (master)
$ git add readme.txt

• 在git commit之前我們在看看狀態

[email protected]
 
 MINGW64 /e/githome/learngit (master)
$ git status
On branch master
Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

        modified:   readme.txt

git status告訴我們，將要被提交的修改包括readme.txt下面可以放心的提交了

lvjingying@LAPTOP-VGTK7EP5 MINGW64 /e/githome/learngit (master)
$ git commit -m "修改了第二行加了中文改動"
[master 376ad95] 修改了第二行加了中文改動
 1 file changed, 1 insertion(+), 1 deletion(-)

• 再看看倉庫狀態

[email protected] MINGW64 /e/githome/learngit (master)
$ git status
On branch master
nothing to commit, working tree clean

Git告訴我們當前沒有需要提交的修改