我有以下表格，这些文字来自Telnet套接字。
-> iosFdShow
fd name drv
3 /tyCo/0 1 in out err
4 (socket) 7
5 (socket) 7
6 (socket) 7
7 (socket) 7
8 (socket) 7
9 (socket) 7
10 (socket) 7
11 logfile 2
12 /doc0/Log/log.txt 3
13 /doc0/CONFIG_A/System 3
14 /doc0/CONFIG_A/Entity 3
15 /doc0/CONFIG_A/Network 3
16 /doc0/SW_B/fpga.rbf 3
17 (socket) 7
18 (socket) 7
19 /tyCo/1 1
20 (socket) 7
21 (socket) 7
22 (socket) 7
23 (socket) 7
24 (socket) 7
25 (socket) 7
26 (socket) 7
27 (socket) 7
30 (dev deleted)tLogin3fedc10 n/a
31 (socket) 7
34 (dev deleted)tLogin4238110 n/a
35 (dev deleted)tShellRem73924472 n/a
36 (dev deleted)tLogin4238110 n/a
39 (dev deleted)tShellRem73924472 n/a
40 (dev deleted)tLogin4436b28 n/a
41 (dev deleted),)ְ,)׀,)א n/a
42 (dev deleted)tShellRem71667576 n/a
43 (dev deleted)tLogin4238110 n/a
44 (dev deleted) S0®ָכr n/a
45 (dev deleted)tLogin4238110 n/a
46 (dev deleted)tLogin4355560 n/a
47 (dev deleted)tShellRem73924472 n/a
48 (dev deleted)tShellRem73924472 n/a
49 (dev deleted)tLogin4355560 n/a
50 (dev deleted)tLogin4355560 n/a
51 (dev deleted)tShellRem73924472 n/a
52 (dev deleted)tShellRem73924472 n/a
53 (dev deleted)tShellRem73924472 n/a
54 (dev deleted)tLogin4355560 n/a
55 (dev deleted)tLogin4355560 n/a
56 (dev deleted) n/a
57 (dev deleted)tLogin4355560 n/a
58 (dev deleted)tLogin4355560 n/a
59 (dev deleted)tLogin4355560 n/a
60 (dev deleted)tLogin4355560 n/a
61 (dev deleted)tLogin4355560 n/a
62 (dev deleted)ַ@e
Jh n/a
63 (dev deleted)tLogin4355560 n/a
64 (dev deleted)tLogin4355560 n/a
65 (dev deleted)tLogin4355560 n/a
66 (dev deleted)כ8 n/a
67 (dev deleted) S0®ָכr n/a
68 (dev deleted) n/a
69 (dev deleted) n/a
70 (dev deleted) n/a
71 (dev deleted) n/a
72 (dev deleted)tLogin4355560 n/a
73 (dev deleted)tLogin4355560 n/a
74 (dev deleted)tLogin4355560 n/a
75 (dev deleted)tLogin4355560 n/a
76 (dev deleted)tLogin4355560 n/a
77 (dev deleted) S0®ָכr n/a
78 (dev deleted) S0®ָכr n/a
79 (dev deleted)tLogin4238110 n/a
80 (dev deleted) S0®ָכr n/a
81 (dev deleted)tShellRem77561720 n/a
82 (dev deleted)tLogin4355560 n/a
83 (dev deleted)tLogin4355560 n/a
84 (dev deleted)tShellRem77561720 n/a
85 (dev deleted)tShellRem77561720 n/a
86 (dev deleted)tLogin4355560 n/a
87 (dev deleted)6 ¨2Lץָe n/a
88 (dev deleted)״
ך`ןְ n/a
89 (dev deleted)6 ¨2Lץָe n/a
90 (dev deleted)ַ@e
Jh n/a
91 (dev deleted)tShellRem77561720 n/a
92 (dev deleted)6 ¨2Lץָe n/a
93 (dev deleted)ַ@e
Jh n/a
94 (dev deleted) n/a
95 (dev deleted)ַ@e
Jh n/a
96 (dev deleted) n/a
97 (dev deleted)״
ך`ןְ n/a
98 (dev deleted) n/a
99 (dev deleted)״
ך`ןְ n/a
value = 100 = 0x64 = 'd'
->
我知道在进入＆＃39; iosFdShow＆＃39;命令我将得到一个像结果一样的表，最后是行（字符串）＆＃34;值= 100 = 0x64 =＆＃39; d＆＃39; ＆＃34 ;.我不知道的是这个表中的行数以及该表是否包含其他行（我的框中的调试行）。
如何捕获最后一行的索引？在这种情况下，索引是99
修改
我发现以下情况（最后一行有两个数字使得索引更难捕捉）
-> iosFdShow
fd name drv
3 /tyCo/0 1 in out err
4 (socket) 7
5 (socket) 7
6 (socket) 7
7 (socket) 7
8 (socket) 7
9 (socket) 7
10 (socket) 7
11 logfile 2
12 /doc0/Log/log.txt 3
13 /doc0/CONFIG_A/System 3
14 /doc0/CONFIG_A/Entity 3
15 /doc0/CONFIG_A/Network 3
16 /doc0/SW_B/fpga.rbf 3
17 (socket) 7
18 (socket) 7
19 /tyCo/1 1
20 (socket) 7
21 (socket) 7
22 (socket) 7
23 (socket) 7
24 (socket) 7
25 (socket) 7
26 stdio_pty_16bd7d8.M 6
27 (socket) 7
28 (socket) 7
29 stdio_pty_16bd7d8.S 5
value = 100 = 0x64 = 'd'
在两种情况下，将捕获表中最后一行索引的正则表达式是什么？
答案 0 :(得分：2)
试试这个正则表达式：
\d+(?=\D*?value = 100 = 0x64 = 'd')
<强> Click for Demo
<强>解释
\d+ - 匹配1位以上的数字(?=\D*?value = 100 = 0x64 = 'd') - 积极向前看，以确保当前位置后跟0次出现的非数字，尽可能少，后跟字符串value = 100 = 0x64 = 'd'