解決samba只讀，但無修改許可權的配置

[Share1]
comment = shared by telephony team
valid user = meizu
force group = meizu
force user = meizu
create mask = 0755
create mode = 0664
directory mode = 0775
browseable = yes
path = /home/meizu
public = yes
available = yes
writable = yes

[Share2]
comment = shared by telephony team
valid user = meizu
force group = meizu
force user = meizu
create mask = 0755
create mode = 0664
directory mode = 0775
browseable = yes
path = /share/ext
public = yes
available = yes
writable = yes

1. 一個share對應的是一個訪問目錄，如果需要訪問多個目錄就定義多個share即可
2. 解決只讀，但是沒有修改許可權的問題，一定要加valid user，force group，force user三個欄位，這樣可以確定使用samba的是什麼使用者，而不是一個臨時使用者