excel中=IF(A2="","",IF(ISERROR(VLOOKUP(A2,SHEET1!A:B,2,0)),"查无此人",VLOOKUP(A2,SHEET1!A:B,2,0)))

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excel中=IF(A2=

excel中=IF(A2="","",IF(ISERROR(VLOOKUP(A2,SHEET1!A:B,2,0)),"查无此人",VLOOKUP(A2,SHEET1!A:B,2,0)))
excel中=IF(A2="","",IF(ISERROR(VLOOKUP(A2,SHEET1!A:B,2,0)),"查无此人",VLOOKUP(A2,SHEET1!A:B,2,0)))

excel中=IF(A2="","",IF(ISERROR(VLOOKUP(A2,SHEET1!A:B,2,0)),"查无此人",VLOOKUP(A2,SHEET1!A:B,2,0)))
A:B表示A和B两列所有行
2表示第二列,
0表示精确匹配