我在选项按钮组的interactivechange事件中有如下命令行:
......
go 记录号(数值型)
if this.value=1 and this.option1.caption=cphrase or this.value=2 and this.option2.caption=cphrase or this.value=3 and this.option3.caption=cphrase or this.value=4 and this.option4.caption=cphrase
  thisform.label5.caption="v"
endif
......

&&cphrase为当前打开表的字符型字段名

试运行时总是在if语句行提示"操作符/操作数类型不匹配",怎么回事?