取括号内的数 显相应的位置 (9328)

B3=IFERROR(FIND("（"&B$2,$A3)^0,"")

K3=TEXT((LEN($A6)-LEN(SUBSTITUTE($A6,"+"&K$2,)))/2,"0;;")

另解 B3=IFERROR(1/COUNTIF($A3,"*（"&B$2&"*"),"")