首先打开小乌龟的setting
选择Diff Viewer属性相
修改属性为：
2对应 “C:\Program Files\Beyond Compare 4\BCompare.exe” %base %mine /title1=%bname /title2=%yname /leftreadonly
4对应 “C:\Program Files\Beyond Compare 4\BCompare.exe”
选择Merge Tool相
修改属性为：
6对应 “C:\Program Files\Beyond Compare 4\BCompare.exe” %mine %theirs %base %merged /title1=%yname /title2=%tname /title3=%bname /title4=%mname
修改好后点击确定
比对的效果
文中C:\Program Files\Beyond Compare 4\为Beyond Compare的安装路径