从TXT 文件中读取 某字符串出现的次数,该怎么处理
从TXT 文件中读取 某字符串出现的次数
TXT 文本格式如下， 怎么找 Component 下的 字符串在整个文件中出现的次数，用什么样的方法提取componet下的值
---- Feeder setup Sheet ---- 2012-1-14 15:48 Page 1
< Including Comment > Line name 2010L
Program name = B949K055205E-1.H61 2012-1-14 15:47
PWB ID = 19AK055203
User ID =
Station = #1 2010L (2010L)
Pos. Component Comment Pack Type Pitch lane Use
F - 46 1124510290 1000PF Tape 8mm paper 4mm(4*1) * Yes
F - 48 105A722019 2.2KOHM Tape 8mm paper 4mm(4*1) * Yes
F - 50 105A700009 0 OHM Tape 8mm paper 4mm(4*1) * Yes
F - 52 1124518191 180PF Tape 8mm paper 2mm(2*1) * Yes
F - 54 1124518191 180PF Tape 8mm paper 2mm(2*1) * Yes
F - 56 105A782019 8.2KOHM Tape 8mm paper 4mm(4*1) * Yes
F - 58 1124422090 22PF Tape 8mm paper 4mm(4*1) * Yes
F - 60 1212000041 47 OHM Tape 8mm paper 4mm(4*1) * Yes
F - 62 1212000056 2A Tape 8mm paper 4mm(4*1) * Yes
---- Feeder setup Sheet ---- 2012-1-14 15:48 Page 2
< Including Comment > Line name 2010L
Program name = B949K055205E-1.H61 2012-1-14 15:47
PWB ID = 19AK055203
User ID =
Station = #1 2010L (2010L)
Pos. Component Comment Pack Type Pitch lane Use
---- Feeder setup Sheet ---- 2012-1-14 15:48 Page 1
< Including Comment > Line name 2010L
Program name = B949K055205E-2.H62 2012-1-14 15:48
PWB ID = 19AK055203
User ID =
Station = #1 2010L (2010L)
Pos. Component Comment Pack Type Pitch lane Use
F - 49 1121510490 0.1UF Tape 8mm paper 4mm(4*1) * Yes
F - 51 1121510490 0.1UF Tape 8mm paper 4mm(4*1) * Yes
F - 53 1121510490 0.1UF Tape 8mm paper 4mm(4*1) * Yes
F - 55 1121510490 0.1UF Tape 8mm paper 4mm(4*1) * Yes
F - 57 1100000870 1UF Tape 8mm paper 2mm(2*1) * Yes
---- Feeder setup Sheet ---- 2012-1-14 15:48 Page 2
TXT 文本格式如下， 怎么找 Component 下的 字符串在整个文件中出现的次数，用什么样的方法提取componet下的值
---- Feeder setup Sheet ---- 2012-1-14 15:48 Page 1
< Including Comment > Line name 2010L
Program name = B949K055205E-1.H61 2012-1-14 15:47
PWB ID = 19AK055203
User ID =
Station = #1 2010L (2010L)
Pos. Component Comment Pack Type Pitch lane Use
F - 46 1124510290 1000PF Tape 8mm paper 4mm(4*1) * Yes
F - 48 105A722019 2.2KOHM Tape 8mm paper 4mm(4*1) * Yes
F - 50 105A700009 0 OHM Tape 8mm paper 4mm(4*1) * Yes
F - 52 1124518191 180PF Tape 8mm paper 2mm(2*1) * Yes
F - 54 1124518191 180PF Tape 8mm paper 2mm(2*1) * Yes
F - 56 105A782019 8.2KOHM Tape 8mm paper 4mm(4*1) * Yes
F - 58 1124422090 22PF Tape 8mm paper 4mm(4*1) * Yes
F - 60 1212000041 47 OHM Tape 8mm paper 4mm(4*1) * Yes
F - 62 1212000056 2A Tape 8mm paper 4mm(4*1) * Yes
---- Feeder setup Sheet ---- 2012-1-14 15:48 Page 2
< Including Comment > Line name 2010L
Program name = B949K055205E-1.H61 2012-1-14 15:47
PWB ID = 19AK055203
User ID =
Station = #1 2010L (2010L)
Pos. Component Comment Pack Type Pitch lane Use
---- Feeder setup Sheet ---- 2012-1-14 15:48 Page 1
< Including Comment > Line name 2010L
Program name = B949K055205E-2.H62 2012-1-14 15:48
PWB ID = 19AK055203
User ID =
Station = #1 2010L (2010L)
Pos. Component Comment Pack Type Pitch lane Use
F - 49 1121510490 0.1UF Tape 8mm paper 4mm(4*1) * Yes
F - 51 1121510490 0.1UF Tape 8mm paper 4mm(4*1) * Yes
F - 53 1121510490 0.1UF Tape 8mm paper 4mm(4*1) * Yes
F - 55 1121510490 0.1UF Tape 8mm paper 4mm(4*1) * Yes
F - 57 1100000870 1UF Tape 8mm paper 2mm(2*1) * Yes
---- Feeder setup Sheet ---- 2012-1-14 15:48 Page 2