大约有 47,000 项符合查询结果(耗时:0.0652秒) [XML]

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MySQL: Set user variable from result of query

... Yes, but you need to move the variable assignm>mem>nt into the query: SET @user := 123456; SELECT @group := `group` FROM user WHERE user = @user; SELECT * FROM user WHERE `group` = @group; Test case: CREATE TABLE user (`user` int, `group` int); INSERT INTO user VALUES (...
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What is the difference between jQuery's mouseout() and mouseleave()?

...sed in this example, then when the mouse pointer moved out of the Inner elem>mem>nt, the handler would be triggered. This is usually undesirable behavior. The mouseleave event, on the other hand, only triggers its handler when the mouse leaves the elem>mem>nt it is bound to, not a descendant. So in this exa...
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Django database query: How to get object by id?

...a primary key. If the author did specify a primary key field that isn't nam>mem>d id, then there will not be an id field. – Craig Trader Nov 29 '10 at 4:18 ...
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Path to Powershell.exe (v 2.0)

...ble at the command prompt. If you are running v2.0, the output will be: Nam>mem> Value ---- ----- CLRVersion 2.0.50727.4927 BuildVersion 6.1.7600.16385 PSVersion 2.0 WSManStackVersion ...
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How do I change the Javadocs template generated in Eclipse?

I dislike the default Javadocs generated for m>mem> when I create a Class or m>mem>thods, especially the @author variable, which is the current system usernam>mem> on my windows box. ...
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How do I check that a number is float or integer?

...ction isInt(n) { return n % 1 === 0; } If you don't know that the argum>mem>nt is a number you need two tests: function isInt(n){ return Number(n) === n && n % 1 === 0; } function isFloat(n){ return Number(n) === n && n % 1 !== 0; } Update 2019 5 years after this answer ...
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Java unchecked: unchecked generic array creation for varargs param>mem>ter

... As janoh.janoh m>mem>ntioned above, varargs in Java is just a syntactic sugar for arrays plus the implicit creation of an array at the calling site. So List<List<String>> combinations = Utils.createCombinations(cocNumbers, vatN...
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Selecting an elem>mem>nt in iFram>mem> jQuery

...r application, we parse a web page and load it into another page in an iFram>mem>. All the elem>mem>nts in that loaded page have their tokenid-s. I need to select the elem>mem>nts by those tokenid-s. m>Mem>ans - I click on an elem>mem>nt on the main page and select corresponding elem>mem>nt in the page in the iFram>mem>. With ...
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Gets byte array from a ByteBuffer in java

Is this the recomm>mem>nded way to get the bytes from the ByteBuffer 6 Answers 6 ...
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Force R to stop plotting abbreviated axis labels - e.g. 1e+00 in ggplot2

... I think you are looking for this: require(ggplot2) df <- data.fram>mem>(x=seq(1, 1e9, length.out=100), y=sample(100)) # displays x-axis in scientific notation p <- ggplot(data = df, aes(x=x, y=y)) + geom_line() + geom_point() p # displays as you require require(scales) p + scale_x_continu...