大约有 44,000 项符合查询结果(耗时:0.0391秒) [XML]

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How do I iterate through the alphabet?

In Python, could I simply ++ a char? What is an efficient way of doing this? 2 Answers ...
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How do I make a placeholder for a 'select' box?

...s which is working out just fine. But I'd like to use a placeholder for my selectboxes as well. Of course I can just use this code: ...
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Insert the carriage return character in vim

...tored a file in Unix ( \n newlines). I need to insert the carriage return character ( U+000D aka \r ). When I try to paste it from the clipboard ( "+p ) or type it using Ctrl + Shift + u - 000d , the linefeed is inserted ( U+000A ). ...
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How can I combine multiple rows into a comma-delimited list in Oracle? [duplicate]

...countries values ('Andorra'); insert into countries values ('Antigua'); SELECT SUBSTR (SYS_CONNECT_BY_PATH (country_name , ','), 2) csv FROM (SELECT country_name , ROW_NUMBER () OVER (ORDER BY country_name ) rn, COUNT (*) OVER () cnt FROM countries) WHE...
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How does this milw0rm heap spraying exploit work?

...ely random. That cannot be right. I tried to swap bytes, assuming that the characters in a string were stored in little-endian, but it did not help. – Juho Östman Nov 17 '10 at 19:48 ...
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How to list active / open connections in Oracle?

... Error starting at line 1 in command: select * from FROM v$session Error at Command Line:1 Column:14 Error report: SQL Error: ORA-00903: invalid table name 00903. 00000 - "invalid table name" *Cause: *Action: – pistacchio ...
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Regex Named Groups in Java

...ursor; [...] // test forGroupName int startChar = ch; while(ASCII.isWord(ch) && ch != '>') ch=read(); if(ch == '>'){ // valid group name int len = cursor-start; i...
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Convert to absolute value in Objective-C

...+ programs too.) (Alas, there is no habs(short) function. Or scabs(signed char) for that matter...) Apple's and GNU's Objective-C headers also include an ABS() macro which is type-agnostic. I don't recommend using ABS() however as it is not guaranteed to be side-effect-safe. For instance, ABS(a+...
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Adding custom radio buttons in android

... Add a background drawable that references to an image, or a selector (like below), and make the button transparent: <RadioButton android:id="@+id/radio0" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@null" android:...
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Recommended SQL database design for tags or tagging [closed]

...ries which you will do: Output all Tags for one Item, draw a Tag-Cloud and select all items for one Tag Title. All Tags for one Item: 3-Table: SELECT Tag.Title FROM Tag JOIN ItemTag ON Tag.TagID = ItemTag.TagID WHERE ItemTag.ItemID = :id 2-Table: SELECT Tag.Title FROM Tag WHERE Tag.Item...