可以使用xpath获取特定的表
可以使用xpath获取特定的表
提问于 2018-06-04 18:20:18
使用xpath和table标签可以获取特定的表，如下所示，谢谢！
<table border="0" cellspacing="1" cellpadding="1" class="bigborder" width="1050">*上面的特定表格标签可以在该URL中找到，再次感谢！
import requests
from lxml import html
req = requests.get("url")
raw_html = html.fromstring(req.text)
tr = raw_html.xpath('//*[@id="innerContent"]/table/tbody/tr/td[2]/form/table[4]//tr/text()')
print("".join([x.replace("\t", "").replace("\r\n","").strip() for x in tr]))输出：None
预期输出：
491 12 20/03/2016 ST / "Turf" / "A " 1200 G 4 12 052 C S Shum K K
Chiong 9-1/4 92 112 8 11 12 1.11.59 1067 TT/B
456 09 06/03/2016 ST / "Turf" / "C " 1200 G 4 8 052 C S Shum G
Lerena 8-3/4 16 126 9 10 9 1.11.42 1078 TT1/B1回答 1
Stack Overflow用户
回答已采纳
发布于 2018-06-05 07:52:46
值为"innerContent“的属性id在超文本标记语言中不存在，您在xpath中使用了它。您可以返回一个tr元素列表，从中可以提取字符串。您使用它的方式是查找tr标记的文本元素，而这个元素并不存在。你可以像这样得到所有的行。
import requests
from lxml import html
import re
req = requests.get(<URL>)
raw_html = html.fromstring(req.text)
lines = raw_html.xpath('//form/table[4]/tr')
for line in lines:
print(re.sub( '\s+', ' ', line.xpath("string()").replace("\t"," ").replace("\r"," ").replace("\n"," ")).strip())输出：
RaceIndex Pla. Date RC/Track/Course Dist. G RaceClass Dr Rtg. Trainer Jockey LBW Win Odds Act.Wt. RunningPosition Finish Time Declar.Horse Wt. Gear VideoReplay
17/18 Season
264 06 13/12/2017 HV / "Turf" / "C " 1650 G 5 2 013 C W Chang W M Lai 6-1/2 15 113 4 4 3 6 1.41.76 1115 TT/B-
181 13 11/11/2017 ST / "Turf" / "A " 1400 GF 5 8 016 C W Chang W M Lai 6 89 113 13 13 12 13 1.23.58 1109 TT/B2
138 09 25/10/2017 HV / "Turf" / "C+3 " 1650 GF 5 10 018 C W Chang W M Lai 3-1/2 37 113 10 11 10 9 1.40.77 1100 TT
068 11 27/09/2017 HV / "Turf" / "C+3 " 1650 GF 5 7 020 C W Chang W M Lai 8 24 113 4 5 5 11 1.41.93 1102 TT
031 04 13/09/2017 HV / "Turf" / "B " 1650 GF 5 7 020 C W Chang W M Lai 1-3/4 45 114 7 8 7 4 1.41.43 1099 TT/B-
013 11 06/09/2017 HV / "Turf" / "A " 1650 G 5 11 020 C W Chang W M Lai 8-1/2 16 113 11 11 11 11 1.42.61 1110 TT/B
16/17 Season
707 02 07/06/2017 HV / "Turf" / "A " 1650 G 5 4 016 C W Chang W M Lai 2 31 113 10 10 8 2 1.40.41 1084 TT/B
589 12 23/04/2017 ST / "AWT" / "-" 1200 GD 5 12 020 C W Chang W M Lai 12 39 113 11 12 12 1.11.33 1082 TT/CP-/B2
481 10 12/03/2017 ST / "AWT" / "-" 1650 GD 5 13 023 C S Shum H T Mo 12-1/2 24 108 14 14 13 10 1.40.66 1068 TT/CP
390 13 05/02/2017 ST / "Turf" / "C " 1400 G 5 8 026 C S Shum H T Mo 5-3/4 14 111 11 11 12 13 1.23.93 1074 TT/CP
344 04 18/01/2017 ST / "AWT" / "-" 1200 GD 5 12 028 C S Shum H T Mo 5-1/2 60 112 11 11 4 1.10.46 1077 TT/B-/CP1
286 10 27/12/2016 ST / "Turf" / "A+3 " 1200 G 5 3 030 C S Shum O Murphy 7 11 123 5 5 10 1.12.18 1075 TT/B
231 09 04/12/2016 ST / "AWT" / "-" 1200 GD 5 6 033 C S Shum Z Purton 4 19 126 6 7 9 1.09.65 1066 TT/B
223 11 30/11/2016 HV / "Turf" / "A " 1200 G 5 8 035 C S Shum N Rawiller 5 10 130 10 11 11 1.11.47 1062 TT/B
213 07 27/11/2016 ST / "Turf" / "C " 1400 G 5 6 035 C S Shum Z Purton 2-1/2 11 128 6 7 6 7 1.23.50 1079 TT/B
103 14 16/10/2016 ST / "Turf" / "C " 1600 GF 5 14 035 C S Shum N Rawiller 25-3/4 11 128 1 2 6 14 1.39.40 1078 TT/B
049 07 25/09/2016 ST / "Turf" / "A " 1400 GF 5 9 036 C S Shum N Rawiller 1-3/4 11 129 7 9 9 7 1.23.23 1077 TT/B
001 05 03/09/2016 ST / "Turf" / "B " 1200 G 5 7 036 C S Shum N Rawiller 3-1/2 70 125 9 9 5 1.09.89 1086 TT/B
15/16 Season
639 12 14/05/2016 ST / "AWT" / "-" 1650 WS 4 8 042 C S Shum H N Wong 20-1/2 99 108 6 5 9 12 1.41.86 1043 TT/B
605 13 01/05/2016 ST / "Turf" / "B " 1400 G 4 10 046 C S Shum M L Yeung 8-1/4 99 117 6 4 5 13 1.24.19 1053 TT/B
527 09 03/04/2016 ST / "Turf" / "B+2 " 1400 G 4 13 049 C S Shum C Schofield 5-3/4 99 122 12 13 12 9 1.23.16 1065 TT/B
491 12 20/03/2016 ST / "Turf" / "A " 1200 G 4 12 052 C S Shum K K Chiong 9-1/4 92 112 8 11 12 1.11.59 1067 TT/B
456 09 06/03/2016 ST / "Turf" / "C " 1200 G 4 8 052 C S Shum G Lerena 8-3/4 16 126 9 10 9 1.11.42 1078 TT1/B1页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50678331
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