if(or(xxx=null,len(xxx)=0,xxx=''),true,false)
我想在结果为true里再加个if(or(xxx=null,len(xxx)=0,xxx=''),true,false) 可以这样吗,可以的话怎么些
if(or(xxx=null,len(xxx)=0,xxx=''),if(or(xxx=null,len(xxx)=0,xxx=''),true,false),false)