Answers:
man zshall /forward-word /backward-word
echo $WORDCHARS
*?_-.[]~=/&;!#$%^(){}<>
WORDCHARS='*?_-.[]~=&;!#$%^(){}<>' ;# without /
WORDCHARS=${WORDCHARS//[\/]}。
WORDCHARS=${WORDCHARS/\/}
WORDCHARS=$WORDCHARS:s:/:
;不需要?我将添加'"'和"'"(单引号和双引号)和~