tmux, zsh status line show name not full path

When I only use tmux,I can change the window's name in the status line,but when i install zsh, the tmux status line show the full path of the file.

Now i want to show only the name like install zsh before, and i want to change the window's name,can any one help?

here's my tmux.conf:

# Aliases
#

alias ta='tmux attach -t'
alias ts='tmux new-session -s'
alias tl='tmux list-sessions'
alias tksv='tmux kill-server'
alias tkss='tmux kill-session -t'

# Only run if tmux is actually installed
if which tmux &> /dev/null
    then
    # Configuration variables
    #
    # Automatically start tmux
    [[ -n "$ZSH_TMUX_AUTOSTART" ]] || ZSH_TMUX_AUTOSTART=false
    # Only autostart once. If set to false, tmux will attempt to
    # autostart every time your zsh configs are reloaded.
    [[ -n "$ZSH_TMUX_AUTOSTART_ONCE" ]] || ZSH_TMUX_AUTOSTART_ONCE=true
    # Automatically coect to a previous session if it exists
    [[ -n "$ZSH_TMUX_AUTOCONNECT" ]] || ZSH_TMUX_AUTOCONNECT=true
    # Automatically close the terminal when tmux exits
    [[ -n "$ZSH_TMUX_AUTOQUIT" ]] || ZSH_TMUX_AUTOQUIT=$ZSH_TMUX_AUTOSTART
    # Set term to screen or screen-256color based on current terminal support
    [[ -n "$ZSH_TMUX_FIXTERM" ]] || ZSH_TMUX_FIXTERM=true
    # Set '-CC' option for iTerm2 tmux integration
    [[ -n "$ZSH_TMUX_ITERM2" ]] || ZSH_TMUX_ITERM2=false
    # The TERM to use for non-256 color terminals.
    # Tmux states this should be screen, but you may need to change it on
    # systems without the proper terminfo
    [[ -n "$ZSH_TMUX_FIXTERM_WITHOUT_256COLOR" ]] || ZSH_TMUX_FIXTERM_WITHOUT_256COLOR="screen"
    # The TERM to use for 256 color terminals.
    # Tmux states this should be screen-256color, but you may need to change it on
    # systems without the proper terminfo
    [[ -n "$ZSH_TMUX_FIXTERM_WITH_256COLOR" ]] || ZSH_TMUX_FIXTERM_WITH_256COLOR="screen-256color"


    # Get the absolute path to the current directory
    local zsh_tmux_plugin_path="$(cd "$(diame "$0")" && pwd)"

    # Determine if the terminal supports 256 colors
    if [[ `tput colors` == "256" ]]
    then
        export ZSH_TMUX_TERM=$ZSH_TMUX_FIXTERM_WITH_256COLOR
    else
        export ZSH_TMUX_TERM=$ZSH_TMUX_FIXTERM_WITHOUT_256COLOR
    fi

    # Set the correct local config file to use.
    if [[ "$ZSH_TMUX_ITERM2" == "false" ]] && [[ -f $HOME/.tmux.conf || -h $HOME/.tmux.conf ]]
    then
        #use this when they have a ~/.tmux.conf
        export _ZSH_TMUX_FIXED_CONFIG="$zsh_tmux_plugin_path/tmux.extra.conf"
    else
        #use this when they don't have a ~/.tmux.conf
        export _ZSH_TMUX_FIXED_CONFIG="$zsh_tmux_plugin_path/tmux.only.conf"
    fi

    # Wrapper function for tmux.
    function _zsh_tmux_plugin_run()
    {
        # We have other arguments, just run them
        if [[ -n "$@" ]]
        then
            tmux $@
        # Try to coect to an existing session.
        elif [[ "$ZSH_TMUX_AUTOCONNECT" == "true" ]]
        then
            tmux `[[ "$ZSH_TMUX_ITERM2" == "true" ]] && echo '-CC '` attach || tmux `[[ "$ZSH_TMUX_ITERM2" == "true" ]] && echo '-CC '` `[[ "$ZSH_TMUX_FIXTERM" == "true" ]] && echo '-f '$_ZSH_TMUX_FIXED_CONFIG` new-session
            [[ "$ZSH_TMUX_AUTOQUIT" == "true" ]] && exit
        # Just run tmux, fixing the TERM variable if requested.
        else
            tmux `[[ "$ZSH_TMUX_ITERM2" == "true" ]] && echo '-CC '` `[[ "$ZSH_TMUX_FIXTERM" == "true" ]] && echo '-f '$_ZSH_TMUX_FIXED_CONFIG`
            [[ "$ZSH_TMUX_AUTOQUIT" == "true" ]] && exit
        fi
    }

    # Use the completions for tmux for our function
    compdef _tmux _zsh_tmux_plugin_run

    # Alias tmux to our wrapper function.
    alias tmux=_zsh_tmux_plugin_run

    # Autostart if not already in tmux and enabled.
    if [[ ! -n "$TMUX" && "$ZSH_TMUX_AUTOSTART" == "true" ]]
    then
        # Actually don't autostart if we already did and multiple autostarts are disabled.
        if [[ "$ZSH_TMUX_AUTOSTART_ONCE" == "false" || "$ZSH_TMUX_AUTOSTARTED" != "true" ]]
        then
            export ZSH_TMUX_AUTOSTARTED=true
            _zsh_tmux_plugin_run
        fi
    fi
else
    print "zsh tmux plugin: tmux not found. Please install tmux before using this plugin."
fi