大约有 40,000 项符合查询结果(耗时:0.0324秒) [XML]

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Checking if a string can be converted to float in Python

...False print(isfloat("12.34.56")) False Two dots not allowed. print(isfloat("#56")) False print(isfloat("56%")) False print(isfloat("0E0")) True print(isfloat("x86E0")) False print(isfloat("86-5")) ...
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How do you log all events fired by an element in jQuery?

I'd like to see all the events fired by an input field as a user interacts with it. This includes stuff like: 12 Answers ...
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PostgreSQL Crosstab Query

... Install the additional module tablefunc once per database, which provides the function crosstab(). Since Postgres 9.1 you can use CREATE EXTENSION for that: CREATE EXTENSION IF NOT EXISTS tablefunc; Improved test case CREATE ...
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Automating “enter” keypresses for bash script generating ssh keys

... is shorter, and should ssh-keygen ever add a question, that will automatically be answered in too. :) – zrajm Apr 24 '15 at 11:08 ...
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How Big can a Python List Get?

...ents. As long as the number of elements you have is equal or below this, all list functions should operate correctly. share | improve this answer | follow | ...
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How do I see what character set a MySQL database / table / column is?

... This should be merged in the top answer. It really helped me. – beppe9000 Jan 14 '17 at 16:55 add a comment  |  ...
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How does one unit test routes with Express?

...rocess of learning Node.js and have been playing around with Express . Really like the framework;however, I'm having trouble figuring out how to write a unit/integration test for a route. ...
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How to automatically convert strongly typed enum into int?

...t it. – PapaAtHome Jan 10 '15 at 16:32 ...
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Which version of PostgreSQL am I running?

I'm in a corporate environment (running Debian Linux) and didn't install it myself. I access the databases using Navicat or phpPgAdmin (if that helps). I also don't have shell access to the server running the database. ...
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How do I find files with a path length greater than 260 characters in Windows?

... See my answer for a way to achieve this in powershell, allowing you to either find the offending file names (those above 260 characters) or alternatively, ignore them. – Jonno Oct 18 '15 at 12:11 ...