<computer:trangleTag sideA="12" sideB="12" sideC="12"/>表示以字符串传递sideABC

<computer:trangleTag sideA=“uname” sideB=“ustudentcode” sideC=“upassword” />表示传递的字符串是uname,ustudentcode,upassword

<computer:trangleTag sideA=uname sideB=ustudentcode sideC=upassword /> 缺少引号报错