逗号分隔列表成匹配的列对

Comma separated list into matched columns pairings

我以为我是一个体面的床单骑师,但这是一个硬汉。我想用公式

把左边变成右边

样本也在:https://docs.google.com/spreadsheets/d/1JgDZOV_K7SbOrCb27Z5K2XUBcrtq99GTCa3-BM2pOD0

我找到的最接近的是这个 (),但它也没有进行匹配。

=ARRAYFORMULA(TRIM(SPLIT(TRANSPOSE(SPLIT(QUERY(TRANSPOSE(QUERY(TRANSPOSE(
 IF(IFERROR(SPLIT(B1:B, ","))<>"", "♠"&A1:A&"♦"&SPLIT(B1:B, ","), ))
 ,,999^99)),,999^99), "♠")), "♦")))

备选 @Matt:King:

=ARRAYFORMULA(QUERY(VLOOKUP(SEQUENCE(COUNTA(A2:A)*
 COLUMNS(SPLIT(B2:B, ",")), 1, 0)/ COLUMNS(SPLIT(B2:B, ","))+2,
 {ROW(A:A), A:A, TRIM(SPLIT(B:B, ","))}, MOD(SEQUENCE(COUNTA(A2:A)*
 COLUMNS(SPLIT(B2:B, ",")), 1, 0), COLUMNS(SPLIT(B2:B, ",")))*{0, 1}+{2, 3}),
 "where Col2 is not NULL"))