if(and(0<=C6<=35,0.3<=C7<=0.7),"符合","不符合")
if的判断条件有多个的时候,要用and()不能直接在条件之间写and
没得这种写法
if(and(c6>=0,c6<=35,c7>=0.3,c7<=0.7),"符合","不符合")
或者
if(c6>=0&&c6<=35&&c7>=0.3&&c7<=0.7,"符合","不符合")
and的用法