SELECT * FROM `表名` a where 1=1
${if(len(vk)=0,""," and 时间="+vk+"")}
两个IF判断语句如何去写
${if(len(vc)=0,""," and vc="+vc+"")}
这样?
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还是if里面套if,把你的场景说清楚啊
if嵌套么?
${if(len(vk)=0,"",if(vk=1," and 时间='"+vk+"'"," and 时间='"+vk+"'"))}