嵌套的IF / AND语句

我想我已经犯了一个错误,因为它不断返回#VALUE

 IF(AND(G2="green",G3="green"),"GG"), IF(AND(G2="red",G3="red"),"RR"), IF(AND(G2="red",G3="green"),"RG"), IF(AND(G2="green",G3="red"),"GR") 

我想说如果它是红色的,它是绿色的,打印RG和其他如RR,GR,GG。

IF()函数有三个参数: TestThen-valueOtherwise-value 。 所以函数应该是这样的:

 =IF(AND(G2="green",G3="green"), "GG",IF(AND(G2="red",G3="red"), "RR",IF(AND(G2="red",G3="green"), "RG",IF(AND(G2="green",G3="red"), "GR")))) 

试试看,

 =IF(SUM(COUNTIF(G2:G3,{"red","green"}))=2,UPPER(LEFT(G2)&LEFT(G3)), TEXT(,))