gnu win32 gzip 命令 不会出现 no suffix错误

C:\Program Files\GnuWin32\bin>gzip 1.txt -k
gzip: 1.txt.gz already exists; do you wish to overwrite (y or n)? y

C:\Program Files\GnuWin32\bin>gzip 1.txt -kdv
gzip: 1.txt: unknown suffix -- ignored

C:\Program Files\GnuWin32\bin>gzip 1.txt -kv
gzip: 1.txt.gz already exists; do you wish to overwrite (y or n)? y
1.txt:   80.2% -- replaced with 1.txt.gz

C:\Program Files\GnuWin32\bin>gzip jafei.txt -kv
jafei.txt:       80.2% -- replaced with jafei.txt.gz

 

 

 

C:\Program Files\GnuWin32\bin>gzip *.jpg -kv
4278.jpg:        11.7% -- replaced with 4278.jpg.gz
5282.jpg:        16.9% -- replaced with 5282.jpg.gz
5365.jpg:         1.8% -- replaced with 5365.jpg.gz

 

 

图片压缩效果 一把

 

对应图片中有大量背景色的图片效果好