convert

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to convert an Object into a String in PHP. Specifically, I'm trying to take a mysql query response, and I'm trying to convert it into something I can write to a file and use later. Of course, when you try to write an Object to a file, PHP appropriately yells: Catchable fatal error: Object of class DB_result could not be converted to string in ..... Alternatively, if there is some other way of writing the result of a mysql query to a file, that works too. I'm playing around with a home-brewed caching project :) 回答1: Maybe serializing ?

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm trying to get parseFloat to convert a userInput ( prompt ) into a number. For example: var userInput = prompt ( "A number" , "5,000" ) function parse_float ( number ) { return parseFloat ( number ) } When userInput = 5,000 , parse_Float(userInput) returns 5 . However, if the user was inputting a value to change something else (ie: make a bank deposit or withdrawl) Then I to work properly, parse.Float(userInput) needs to return 5000 , not 5 . If anyone could tell me how to do this it would help me so much. Thanks in advance. 回答1

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm using Ghostcript to convert some PDF files to JPG. All is working when converting the program consider the resolution of 600dpi when converting and output jpeg quality is good. Here is my code : gs -sDEVICE=jpegcmyk -dTextAlphaBits=4 -r600 -dSAFER -dBATCH -dNOPAUSE -o my_output_file.jpg my_input_file.pdf But when I open the file in Photoshop, the properties contains 72dpi instead of 600dpi I expected : When I try with RGB profile for output, it is ok, I have got 600dpi. So what I want is CMYK + 600dpi in image properties. 回答1: As can be

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: My server's timezone is in Eastern Time. When I first built my members table I went ahead and required members to set their timezone when signing up so that I could add timezone support later. For example, a member signs up and chooses Eastern time for their timezone. The information in the database would look like "-5". The default timestamp I have stored is in Y-m-d H:i:s format. Now how difficult would this be to convert using only the offsets? I want to submit one timestamp (whatever timezone would be best to use with offsets) into the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm parsing an rss feed and each entry has a timestamp such as this: 2009-09-21T21:24:43+04:00 Is there any way to convert this date format to a unix timestamp with javascript? I just want to be able to record the latest rss entry date, but I need to standardize the time to GMT time or Unix timestamp to do this. 回答1: The format appears to be ISO-8601. Assuming that is true, this blog provides a javascript solution to this. 回答2: As I met the same problem, the solution involving Google Closure Library would be: var pattern = "yyyy-MM-ddTHH:mm

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: My table value is Esino ym workeddays name 1 200906 25 a 1 200907 24 a 1 200908 27 a 2 200906 22 b 2 200907 25.... b I nedd out output is Esino ym1 ym2 ym3 w1 w2 w3 name 1 200906 200907 200908 25 24 27 a 2 200906 200907 200908 22 25 21 b.. Condition is The ym is my input i given between month for dynamic for eg 200906 to 200912 or 200901 to 200906 workeddays this also depend upon employee presents 回答1: You can use pivoting - have a look at this question , very close to your scenario. 回答2: you can do this sort of thing using PIVOT 回答3:

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to convert Pdf pages in Images using ItextSharp lib. Have any idea how to convert each page in image file 回答1: iText/iTextSharp can generate and/or modify existing PDFs but they do not perform any rendering which is what you are looking for. I would recommend checking out Ghostscript or some other library that knows how to actually render a PDF. 回答2: you can use ImageMagick convert pdf to image convert -density 300 "d:\1.pdf" -scale @1500000 "d:\a.jpg" and split pdf can use itextsharp here is the code from others. void SplitePDF

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a data structure java.nio.HeapByteBuffer[pos=71098 lim=71102 cap=94870], which I need to convert into Int (in Scala), the conversion might look simple but whatever which I approach , i did not get right conversion. could you please help me? Here is my code snippet: val v : ByteBuffer= map.get("company").get val utf_str = new String(v, java.nio.charset.StandardCharsets.UTF_8) println (utf_str) the output is just "R" ?? 回答1: I can't see how you can even get that to compile, String has constructors that accepts another string or possibly

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a grabber which can get the images and show them on the screen with the following code while((lastPicNr = Fg_getLastPicNumberBlockingEx(fg,lastPicNr+1,0,10,_memoryAllc)) but I want to use the pointer to the image data and display them with OpenCV, cause I need to do the processing on the pixels. my camera is a CCD mono camera and the depth of the pixels is 8bits. I am new to OpenCV, is there any option in opencv that can get the return of the (unsigned char*)Fg_getImagePtrEx(fg,lastPicNr,0,_memoryAllc); and disply it on the screen? or

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have the following class CppProperty class that holds value: template<typename TT> class CppProperty { TT val; public: CppProperty(void) { } CppProperty(TT aval) : val(aval) { } CppProperty(const CppProperty & rhs) { this->val = rhs.val; } virtual ~CppProperty(void) { } TT operator=(TT aval) { this->val = aval; return this->val; } friend TT operator++(CppProperty & rhs); friend TT operator--(CppProperty & rhs); friend TT operator++(CppProperty & rhs, int); friend TT operator--(CppProperty & rhs, int); //template<typename RR> //friend RR