大约有 40,000 项符合查询结果(耗时:0.0338秒) [XML]

https://stackoverflow.com/ques... 

Variable declared in for-loop is local variable?

... { int y = x; if(whatever) { int x = 123; Because now the simple name "x" has been used inside the local variable declaration space of "y" to mean two different things -- "this.x" and the local "x". See http://blogs.msdn.com/b/ericlippert/archive/tags/simple+...
https://stackoverflow.com/ques... 

How do you check if a certain index exists in a table?

... AdaTheDevAdaTheDev 123k2424 gold badges179179 silver badges181181 bronze badges ...
https://stackoverflow.com/ques... 

How does one reorder columns in a data frame?

...n of this function to my personal package. – CoderGuy123 Jul 6 '16 at 12:12 1 This is really usef...
https://stackoverflow.com/ques... 

What is meant by the term “hook” in programming?

...ch tricks as protecting your BASIC programs by setting the first line as: 123 REM XIN#6 then using POKE to insert the CTRL-D character in where the X was. Then, anyone trying to list your source would send the re-initialize sequence through the output routines where the disk sub-system would dete...
https://stackoverflow.com/ques... 

RegEx to find two or more consecutive chars

...Finds a consecutive repeating lower or upper case letter. Matches on "abbc123" and not "abc1223". To allow for a space between them (i.e. a ab), then include an optional space in the regex between the captured character and the repeat... ([a-z]A-Z])\s?\1 ...
https://stackoverflow.com/ques... 

Where and why do I have to put the “template” and “typename” keywords?

...}; /* (C) --> */ f_tmpl<X> (); struct Y { static int const foo = 123; }; /* (D) --> */ f_tmpl<Y> (); The two different scenarios: If we instantiate the function-template with type X, as in (C), we will have a declaration of a pointer-to int named x, but; if we instantiate the ...
https://stackoverflow.com/ques... 

How to get a vertical geom_vline to an x-axis of class date?

...rror() to see where the error occurred.``' – CoderGuy123 Apr 12 at 23:57 add a comment ...
https://stackoverflow.com/ques... 

How to convert an object to a byte array in C#

... public string Name {get;set;} } .... Person person = new Person { Id = 123, Name = "abc" }; Serializer.Serialize(destStream, person); ... Person anotherPerson = Serializer.Deserialize<Person>(sourceStream); share ...
https://stackoverflow.com/ques... 

Jdbctemplate query for string: EmptyResultDataAccessException: Incorrect result size: expected 1, ac

... edited Jun 11 '18 at 16:38 ryan123 58577 silver badges2121 bronze badges answered May 16 '12 at 5:46 Rakesh J...
https://stackoverflow.com/ques... 

How do I grab an INI value within a shell script?

...-liner, that takes sections into account. Example file: [section1] param1=123 param2=345 param3=678 [section2] param1=abc param2=def param3=ghi [section3] param1=000 param2=111 param3=222 Say you want param2 from section2. Run the following: sed -nr "/^\[section2\]/ { :l /^param2[ ]*=/ { s/.*=...