在字符串中使用指定字符替换已有字符.
(dos_strreplace string oldchars newchars [T])
string
字符串.
oldchars
想要被newchars替换的旧字符.
newchars
用于替换oldchars的新字符.
T
如果指定T则忽略大小写. 否则区分大小写.
如果成功, 返回修改后的字符串.
nil 失败时.
Command: (setq str "Everybody likes ice hockey.")
"Everybody likes ice hockey."
Command: (dos_strreplace str "hockey" "golf")
"Everybody likes ice golf."