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app inventor什么时候需要用到字典块? - App Inventor 2 中文网 - 清泛网 ...

...,建议优先使用字典。更多用法请查看文档:https: www fun123 cn referen 列表能完成字典的绝大部分功能,不过字典具有比列表更好的查找性能,因此如果要对数据结构执行大量的操作,建议优先使用字典。 更多用法请查看文档...
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App Inventor 2 如何比较两个日期/时间? - App Inventor 2 中文网 - 清泛...

...日期/时间对象的毫秒数,具体请参见文档:https://www.fun123.cn/reference/ ... tml#Clock.GetMillis即时时间的获取方法:1、日期/时间选择...利用计时器组件的相关方法: 比较两个日期/时间对象的毫秒数,具体请参见文档:https://www.f...
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Best way to create an empty object in JSON with PHP?

...t will keep rendering properly into a dictionary: $complex['dict']['a'] = 123; print json_encode($complex); // -> {"list":[],"dict":{"a":123}} unset($complex['dict']['a']); print json_encode($complex); // -> {"list":[],"dict":{}} If you need this to be 100% compatible both ways, you can al...
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How do I perform an insert and return inserted identity with Dapper?

...Username = "lorem ipsum", Phone = "555-123", Email = "lorem ipsum" }, tran); Return inserted object with ID: If you wanted you could get Phone and Email or even th...
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What is the main difference between PATCH and PUT request?

...rtion of the record, use PUT (user controls what gets updated) PUT /users/123/email new.email@example.org PATCH => If user can only update a partial record, say just an email address (application controls what can be updated), use PATCH. PATCH /users/123 [description of changes] Why Pat...
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Pad a string with leading zeros so it's 3 characters long in SQL Server 2008

...technique for left-padding to any desired width: declare @x int = 123 -- value to be padded declare @width int = 25 -- desired width declare @pad char(1) = '0' -- pad character select right_justified = replicate( @pad , @width-le...
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How to write a simple database engine [closed]

...rt of each column to have the length of this column like "Adam", 1, 11.1, "123 ABC Street POBox 456" you can have it like <&RowHeader, 1><&Col1,CHR, 4>Adam<&Col2, num,1,0>1<&Col3, Num,2,1>111<&Col4, CHR, 24>123 ABC Street POBox 456<&RowTrailer...
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Instagram how to get my user id from username?

... searched for. Eg. if you're searching for "fred1" but there's also a "fred123", you'll get random results! Reported to instagram; awaiting a response :( – Danny Tuppeny Aug 13 '14 at 9:06 ...
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How can I get the concatenation of two lists in Python without modifying either one? [duplicate]

...;>> sum([(1,2), (1,), ()], ()) (1, 2, 1) >>> sum([Counter('123'), Counter('234'), Counter('345')], Counter()) Counter({'1':1, '2':2, '3':3, '4':2, '5':1}) >>> sum([True, True, False], False) 2 With the notable exception of strings: >>> sum(['123', '345', '567'],...
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Using cURL with a username and password?

...syntax curl http://username:password@api.somesite.com/test/blah?something=123 share | improve this answer | follow | ...