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ESP8285接入App Inventor 2深度调研：4种连接方案+是否需要开发拓展 - 创客...
...oid库，支持Arduino)
2. fun123自研拓展
- ClientSocketAI2Ext - TCP Socket客户端，支持异步连接、文本/二进制收发、后台数据监听
- FTPClient - FTP文件传输
3. 关键发现
Serial.java是唯一提及Arduino/ESP8266/ESP8285的运行时文件，使用Physicalo...
Open firewall port on CentOS 7
....
In the case of public try:
firewall-cmd --zone=public --add-port=2888/tcp --permanent
Then remember to reload the firewall for changes to take effect.
firewall-cmd --reload
Otherwise, substitute public for your zone, for example, if your zone is dmz:
firewall-cmd --zone=dmz --add-port=288...
How can I format a number into a string with leading zeros?
...d Mar 24 '11 at 11:26
Øyvind BråthenØyvind Bråthen
52.2k2525 gold badges113113 silver badges138138 bronze badges
...
How to kill a process on a port on ubuntu
...? If Linux specific then, even this command works os.system("fuser -k 8080/tcp");
– Ridhuvarshan
Jul 25 '18 at 12:04
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make_unique and perfect forwarding
...ered Mar 11 '12 at 19:06
Johan RådeJohan Råde
17.7k1919 gold badges5959 silver badges103103 bronze badges
...
How to do a regular expression replace in MySQL?
...exp doesn't seem to have support for multibyte characters. regexp_replace('äöõü', 'ä', '') returns a long numeric string instead of real text.
– lkraav
Feb 20 '12 at 1:44
3
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SQL command to display history of queries
I would like to display my executed sql command history in my MYSQL Query Browser. What is the sql statement for displaying history?
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Understanding Python's “is” operator
...floats and larger ints aren't interned.
– Magnus Lyckå
Sep 21 '17 at 13:56
2
@MagnusLyckå there...
Thin web server: `start_tcp_server': no acceptor (RuntimeError) after git branch checkout
... port 3000 may already be in use. Look at http://mrjaba.posterous.com/starttcpserver-no-acceptor-runtimeerror
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How to round to 2 decimals with Python?
...of answer):
def printC(answer):
print("\nYour Celsius value is {:0.2f}ºC.\n".format(answer))
Where:
: introduces the format spec
0 enables sign-aware zero-padding for numeric types
.2 sets the precision to 2
f displays the number as a fixed-point number
...