正则式匹配段落中的字符串

[wain_]

Cell 01 - Address: B0:48:7A:62:00:7E
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=31/70 Signal level=-79 dBm
Encryption keyn
ESSID:"TP-LINK-ECHARM"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000000256f5a2ce
Extra: Last beacon: 1772ms ago
IE: Unknown: 000E54502D4C494E4B2D45434841524D
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 0706555320010B1B
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6E1003FF00000000000000000000000000000000000000000000
IE: Unknown: 331A6E1003FF00000000000000000000000000000000000000000000
IE: Unknown: 3D16010D0000000000000000000000000000000000000000
IE: Unknown: 3416010D0000000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101020003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD810050F204104A0001101044000102103B0001031047001000000000000010000000B0487A62007E1021000754502D4C494E4B10230009544C2D57523734304E10240003312E3010420003312E301054000800060050F204000110110019576972656C65737320526F7574657220544C2D57523734304E100800020086103C000101
Cell 02 - Address: D8:15:0D:FA:BD:E9
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=47/70 Signal level=-63 dBm
Encryption keyn
ESSID:"wdoffice"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000073f8840fa
Extra: Last beacon: 1148ms ago
IE: Unknown: 000877646F6666696365
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: 2D1AEE111BFFFF000000000000000000000000000000000000000000
IE: Unknown: 331AEE111BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606051100000000000000000000000000000000000000
IE: Unknown: 341606051100000000000000000000000000000000000000
IE: Unknown: DD180050F2020101850003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F

现在有这么一段字符串，我想保存这里面所有Channel和Signal level的值到数组变量中，请问正则式该这么写呢？

[rayw0ng]

re.findall(r'Channel:(\d)|=([-0-9.]+)[ ]*dBm',str)

结果是[('1', ''), ('', '-79'), ('6', ''), ('', '-63')]，不知道你能不能接受。