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BLE（四）嗅探工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...进而确定“访问地址”、“循环冗余校验”初始值、“跳转间隔”、“跳转增量”等，并还原出数据包的值
缺点：
说是支持“传统蓝牙”，但其实只能捕获“基本速率蓝牙”在网络中的活动，并不支持后来的“增强速率蓝牙...
insert multiple rows via a php array into mysql
...ays use mysql's LOAD DATA:
LOAD DATA LOCAL INFILE '/full/path/to/file/foo.csv' INTO TABLE `footable` FIELDS TERMINATED BY ',' LINES TERMINATED BY '\r\n'
to do bulk inserts rather than using a bunch of INSERT statements.
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How can I detect the encoding/codepage of a text file
In our application, we receive text files ( .txt , .csv , etc.) from diverse sources. When reading, these files sometimes contain garbage, because the files where created in a different/unknown codepage.
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How can I strip the whitespace from Pandas DataFrame headers?
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If you use CSV format to export from Excel and read as Pandas DataFrame, you can specify:
skipinitialspace=True
when calling pd.read_csv.
From the documentation:
skipinitialspace : bool, default False
Skip spaces after delimite...
How can I specify a branch/tag when adding a Git submodule?
...] && \
git checkout master || git switch $branch' –
umläute refines dtmland's command with a simplified version in the comments:
git submodule foreach -q --recursive 'git switch $(git config -f $toplevel/.gitmodules submodule.$name.branch || echo master)'
multiple lines:
git su...
【软著】软件著作权证书申请流程及注意事项，模板分享 - App Inventor 2 中...
...升公司或个人的品牌形象，也可以作为公司无形资产进行转让、许可或融资。申报政府项目：一些政府项目、科研项目或资金申请可能要求有软件著作权，获得软著可以提高申请成功的几率。招聘及融资：在人才招聘和融资过程...
Split delimited strings in a column and insert as new rows [duplicate]
... R. It assumes we're starting with a data.frame named "mydf". It uses read.csv to read in the second column as a separate data.frame, which we combine with the first column from your source data. Finally, you use reshape to convert the data into a long form.
temp <- data.frame(Ind = mydf$V1,
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How do I correctly clone a JavaScript object?
... edited Jul 12 '19 at 13:45
buræquete
12.5k44 gold badges3131 silver badges6262 bronze badges
answered Mar 2 '11 at 6:36
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Python, remove all non-alphabet chars from string
... Note that this will also remove accented letters: ãâàáéèçõ, etc.
– AlmostPitt
Jun 15 at 9:20
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Export specific rows from a PostgreSQL table as INSERT SQL script
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COPY (SELECT * FROM nyummy.cimory WHERE city = 'tokio') TO '/path/to/file.csv';
Import the same to another table of the same structure anywhere with:
COPY other_tbl FROM '/path/to/file.csv';
COPY writes and read files local to the server, unlike client programs like pg_dump or psql which read ...