Python:无法展开列表

我从网站上提取信息，并能够获得数据。但是，我无法扩展“K”的数据，但成功扩展了“J”和“L”的数据

请注意，print bursalist仅显示来自“J”和“L”的数据，而缺少“K”。但如果我从列表中获取数据，则会显示数据“K”，但无法扩展。 请告知是否有一种可靠的方法可以做到这一点

打印列表将显示

['K1 ', '0111', 'K-ONE TECHNOLOGY BERHAD', 'Technology Equipment ', 'KAB ', '0193', 'KEJURUTERAAN ASASTERA BERHAD', 'Industrial Engineering ', 'KAMDAR ', '8672', 'KA
MDAR GROUP (M) BERHAD', 'Retailers ', 'KANGER ', '0170', 'KANGER INTERNATIONAL BERHAD', 'Household Goods ', 'KAREX ', '5247', 'KAREX BERHAD', 'Personal Goods ', 'KAR
YON ', '0054', 'KARYON INDUSTRIES BERHAD', 'Chemicals ', 'KAWAN ', '7216', 'KAWAN FOOD BERHAD', 'Food & Beverages ', 'KEINHIN ', '7199', 'KEIN HING INTERNATIONAL BER
HAD', 'Metals ', 'KEN ', '7323', 'KEN HOLDINGS BERHAD', 'Property ', 'KENANGA ', '6483', 'KENANGA INVESTMENT BANK BERHAD', 'Other Financials ', 'KERJAYA ', '7161', '
KERJAYA PROSPEK GROUP BERHAD', 'Construction ', 'KESM ', '9334', 'KESM INDUSTRIES BERHAD', 'Semiconductors ', 'KEYASIC ', '0143', 'KEY ASIC BERHAD', 'Semiconductors 
', 'KFIMA ', '6491', 'KUMPULAN FIMA BERHAD', 'Diversified Industrials ', 'KGB ', '0151', 'KELINGTON GROUP BERHAD', 'Industrial Engineering ', 'KGROUP ', '0036', 'KEY
 ALLIANCE GROUP BERHAD', 'Technology Equipment ', 'KHEESAN ', '6203', 'KHEE SAN BERHAD', 'Food & Beverages ', 'KHIND ', '7062', 'KHIND HOLDINGS BERHAD', 'Household G
oods ', 'KHJB ', '0210', 'KIM HIN JOO (MALAYSIA) BERHAD', 'Retailers ', 'KIALIM ', '6211', 'KIA LIM BERHAD', 'Building Materials ', 'KIMHIN ', '5371', 'KIM HIN INDUS
TRY BERHAD', 'Building Materials ', 'KIMLUN ', '5171', 'KIMLUN CORPORATION BERHAD', 'Construction ', 'KINSTEL ', '5060', 'KINSTEEL BHD', 'Metals ', 'KIPREIT ', '5280
', 'KIP REAL ESTATE INVESTMENT TRUST', 'Real Estate Investment Trusts ', 'KKB ', '9466', 'KKB ENGINEERING BERHAD', 'Industrial Engineering ', 'KLCC ', '5235SS', 'KLC
C PROPERTY HOLDINGS BERHAD', 'Real Estate Investment Trusts ', 'KLCI1XI ', '0835EA', 'KENANGA KLCI DAILY (-1X) INVERSE ETF', 'KENANGA KLCI DAILY 2X LEVERAGED ETF', '
NUSFOR ', '5035', 'KOBAY TECHNOLOGY BERHAD', 'Industrial Materials, Components & Equipment ', 'KOBAY ', '6971', 'KOMARKCORP BERHAD', 'Packaging Materials ', 'KOMARK 
KLCI2XL ', '0834EA', 'KUALA LUMPUR KEPONG BERHAD', 'Plantation ', 'KLK ', '2445', 'KLUANG RUBBER COMPANY (MALAYA) BERHAD', 'Plantation ', 'KLUANG ', '2453', 'KIM LOONG RESOURCES BERHAD', 'Plantation ', 'KMLOONG ', '5027', 'KNM GROUP BERHAD', 'Other Energy Resources ', 'KNM ', '7164', 'KNUSFORD BERHAD', 'Industrial Services ', 'KNUSFOR ', '5035', 'KOBAY TECHNOLOGY BERHAD', 'Industrial Materials, Components & Equipment ', 'KOBAY ', '6971', 'KOMARKCORP BERHAD', 'Packaging Materials ', 'KOMARK ', '7017', 'KOSSAN RUBBER INDUSTRIES BERHAD', 'Health Care Equipment & Services ', 'KOSSAN ', '7153', 'KOTRA INDUSTRIES BERHAD', 'Pharmaceuticals ', 'KOTRA ', '0002', 'KPJ HEALTHCARE BERHAD', 'Health Care Providers ', 'KPJ ', '5878', 'KUMPULAN POWERNET BERHAD', 'Personal Goods ', 'KPOWER ', '7130', 'KERJAYA PROSPEK PROPERTY BERHAD', 'Property ', 'KPPROP ', '7077', 'KUMPULAN PERANGSANG SELANGOR BERHAD', 'Diversified Industrials ', 'KPS ', '5843', 'KPS CONSORTIUM BERHAD', 'Wood & Wood Products ', 'KPSCB ', '9121', 'KRETAM HOLDINGS BERHAD', 'Plantation ', 'KRETAM ', '1996', 'KRONOLOGI ASIA BERHAD', 'Digital Services ', 'KRONO ', '0176', 'KECK SENG (MALAYSIA) BERHAD', 'Diversified Industrials ', 'KSENG ', '3476', 'KSL HOLDINGS BERHAD', 'Property ', 'KSL ', '5038', 'K.SENG SENG CORPORATION BERHAD', 'Industrial Materials, Components & Equipment ', 'KSSC ', '5192', 'K-STAR SPORTS LIMITED', 'Personal Goods ', 'KSTAR ', '5172', 'KONSORTIUM TRANSNASIONAL BERHAD', 'Travel, Leisure & Hospitality ', 'KTB ', '4847', 'KIM TECK CHEONG CONSOLIDATED BERHAD', 'Consumer Services ', 'KTC ', '0180', 'KUB MALAYSIA BERHAD', 'Industrial Services ', 'KUB ', '6874', 'KUCHAI DEVELOPMENT BERHAD', 'Other Financials ', 'KUCHAI ', '2186', 'KWANTAS CORPORATION BERHAD', 'Plantation ', 'KWANTAS ', '6572', 'KYM HOLDINGS BERHAD', 'Pack
aging Materials ', 'KYM ', '8362']

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为什么对范围内的x（len（法氏囊））执行

而不是更简单的
法氏囊中的x
？a=alist
的意义是什么？你在下一次迭代中立即重新分配
a
。@Barmar.“法氏囊中的x”更简单，但结果仍然相同。我从来没有说过输出会不同，这是一个无关的注释。你确定
树1中有什么内容吗
对于
K
？添加
打印（len（tree1））
['K1 ', '0111', 'K-ONE TECHNOLOGY BERHAD', 'Technology Equipment ', 'KAB ', '0193', 'KEJURUTERAAN ASASTERA BERHAD', 'Industrial Engineering ', 'KAMDAR ', '8672', 'KA
MDAR GROUP (M) BERHAD', 'Retailers ', 'KANGER ', '0170', 'KANGER INTERNATIONAL BERHAD', 'Household Goods ', 'KAREX ', '5247', 'KAREX BERHAD', 'Personal Goods ', 'KAR
YON ', '0054', 'KARYON INDUSTRIES BERHAD', 'Chemicals ', 'KAWAN ', '7216', 'KAWAN FOOD BERHAD', 'Food & Beverages ', 'KEINHIN ', '7199', 'KEIN HING INTERNATIONAL BER
HAD', 'Metals ', 'KEN ', '7323', 'KEN HOLDINGS BERHAD', 'Property ', 'KENANGA ', '6483', 'KENANGA INVESTMENT BANK BERHAD', 'Other Financials ', 'KERJAYA ', '7161', '
KERJAYA PROSPEK GROUP BERHAD', 'Construction ', 'KESM ', '9334', 'KESM INDUSTRIES BERHAD', 'Semiconductors ', 'KEYASIC ', '0143', 'KEY ASIC BERHAD', 'Semiconductors 
', 'KFIMA ', '6491', 'KUMPULAN FIMA BERHAD', 'Diversified Industrials ', 'KGB ', '0151', 'KELINGTON GROUP BERHAD', 'Industrial Engineering ', 'KGROUP ', '0036', 'KEY
 ALLIANCE GROUP BERHAD', 'Technology Equipment ', 'KHEESAN ', '6203', 'KHEE SAN BERHAD', 'Food & Beverages ', 'KHIND ', '7062', 'KHIND HOLDINGS BERHAD', 'Household G
oods ', 'KHJB ', '0210', 'KIM HIN JOO (MALAYSIA) BERHAD', 'Retailers ', 'KIALIM ', '6211', 'KIA LIM BERHAD', 'Building Materials ', 'KIMHIN ', '5371', 'KIM HIN INDUS
TRY BERHAD', 'Building Materials ', 'KIMLUN ', '5171', 'KIMLUN CORPORATION BERHAD', 'Construction ', 'KINSTEL ', '5060', 'KINSTEEL BHD', 'Metals ', 'KIPREIT ', '5280
', 'KIP REAL ESTATE INVESTMENT TRUST', 'Real Estate Investment Trusts ', 'KKB ', '9466', 'KKB ENGINEERING BERHAD', 'Industrial Engineering ', 'KLCC ', '5235SS', 'KLC
C PROPERTY HOLDINGS BERHAD', 'Real Estate Investment Trusts ', 'KLCI1XI ', '0835EA', 'KENANGA KLCI DAILY (-1X) INVERSE ETF', 'KENANGA KLCI DAILY 2X LEVERAGED ETF', '
NUSFOR ', '5035', 'KOBAY TECHNOLOGY BERHAD', 'Industrial Materials, Components & Equipment ', 'KOBAY ', '6971', 'KOMARKCORP BERHAD', 'Packaging Materials ', 'KOMARK 
KLCI2XL ', '0834EA', 'KUALA LUMPUR KEPONG BERHAD', 'Plantation ', 'KLK ', '2445', 'KLUANG RUBBER COMPANY (MALAYA) BERHAD', 'Plantation ', 'KLUANG ', '2453', 'KIM LOONG RESOURCES BERHAD', 'Plantation ', 'KMLOONG ', '5027', 'KNM GROUP BERHAD', 'Other Energy Resources ', 'KNM ', '7164', 'KNUSFORD BERHAD', 'Industrial Services ', 'KNUSFOR ', '5035', 'KOBAY TECHNOLOGY BERHAD', 'Industrial Materials, Components & Equipment ', 'KOBAY ', '6971', 'KOMARKCORP BERHAD', 'Packaging Materials ', 'KOMARK ', '7017', 'KOSSAN RUBBER INDUSTRIES BERHAD', 'Health Care Equipment & Services ', 'KOSSAN ', '7153', 'KOTRA INDUSTRIES BERHAD', 'Pharmaceuticals ', 'KOTRA ', '0002', 'KPJ HEALTHCARE BERHAD', 'Health Care Providers ', 'KPJ ', '5878', 'KUMPULAN POWERNET BERHAD', 'Personal Goods ', 'KPOWER ', '7130', 'KERJAYA PROSPEK PROPERTY BERHAD', 'Property ', 'KPPROP ', '7077', 'KUMPULAN PERANGSANG SELANGOR BERHAD', 'Diversified Industrials ', 'KPS ', '5843', 'KPS CONSORTIUM BERHAD', 'Wood & Wood Products ', 'KPSCB ', '9121', 'KRETAM HOLDINGS BERHAD', 'Plantation ', 'KRETAM ', '1996', 'KRONOLOGI ASIA BERHAD', 'Digital Services ', 'KRONO ', '0176', 'KECK SENG (MALAYSIA) BERHAD', 'Diversified Industrials ', 'KSENG ', '3476', 'KSL HOLDINGS BERHAD', 'Property ', 'KSL ', '5038', 'K.SENG SENG CORPORATION BERHAD', 'Industrial Materials, Components & Equipment ', 'KSSC ', '5192', 'K-STAR SPORTS LIMITED', 'Personal Goods ', 'KSTAR ', '5172', 'KONSORTIUM TRANSNASIONAL BERHAD', 'Travel, Leisure & Hospitality ', 'KTB ', '4847', 'KIM TECK CHEONG CONSOLIDATED BERHAD', 'Consumer Services ', 'KTC ', '0180', 'KUB MALAYSIA BERHAD', 'Industrial Services ', 'KUB ', '6874', 'KUCHAI DEVELOPMENT BERHAD', 'Other Financials ', 'KUCHAI ', '2186', 'KWANTAS CORPORATION BERHAD', 'Plantation ', 'KWANTAS ', '6572', 'KYM HOLDINGS BERHAD', 'Pack
aging Materials ', 'KYM ', '8362']