大约有 40,700 项符合查询结果(耗时:0.0208秒) [XML]

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What is the “continue” keyword and how does it work in Java?

...t if you so choose you can also use continue to simulate a limited form of goto. In the following example the continue will re-execute the empty for (;;) loop. aLoopName: for (;;) { // ... while (someCondition) // ... if (otherCondition) continue aLoopName; ...
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Using {} in a case statement. Why?

...can see that cases are just labeled statements like the labels used with a goto statement(this is covered in the C++ draft standard section 6.1 Labeled statement) and we can see from section 6.7 paragraph 3 that jumping pass a declaration is not allowed in many cases, including those with an initial...
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Logical operators (“and”, “or”) in DOS batch

...ments make an implicit conjunction. IF Exist File1.Dat IF Exist File2.Dat GOTO FILE12_EXIST_LABEL If File1.Dat and File1.Dat exist then jump the label FILE12_EXIST_LABEL. See also: IF /? share | ...
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Which comment style should I use in batch files?

...have a special logic in parenthesis blocks. They span always two lines SO: goto command not working. So they are not recommended for parenthesis blocks, as they are often the cause for syntax errors. With ECHO ON a REM line is shown, but not a line commented with :: Both can't really comment out t...
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Format date and time in a Windows batch script

...HO OFF :: Check WMIC is available WMIC.EXE Alias /? >NUL 2>&1 || GOTO s_error :: Use WMIC to retrieve date and time FOR /F "skip=1 tokens=1-6" %%G IN ('WMIC Path Win32_LocalTime Get Day^,Hour^,Minute^,Month^,Second^,Year /Format:table') DO ( IF "%%~L"=="" goto s_done Set _yyyy=%%...
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Why do we need break after case statements?

...case was essentially defining a label, also known as the target point of a goto call. The switch statement and its associated cases really just represent a multiway branch with multiple potential entry points into a stream of code. All that said, it has been noted a nearly infinite number of times...
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What is the best way to auto-generate INSERT statements for a SQL Server table?

...n_Name)-2) + '''',@cols_to_include) = 0 BEGIN GOTO SKIP_LOOP END END IF @cols_to_exclude IS NOT NULL --Selecting only user specified columns BEGIN IF CHARINDEX( '''' + SUBSTRING(@Column_Name,2,LEN(@Column_Name)-2) + '''',@...
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Assign output of a program to a variable using a MS batch file

... echo ERROR: Delayed Expansion must be disabled while defining macros (goto) 2>nul (goto) 2>nul ) (set LF=^ %=empty=% ) (set \n=^^^ %=empty=% ) set $set=FOR /L %%N in (1 1 2) dO IF %%N==2 ( %\n% setlocal EnableDelayedExpansion %\n% for /f "token...
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A valid provisioning profile for this executable was not found for debug mode

...one is not recognized by the provisioning portal. Solution: 1) In Xcode, Goto --> Build --> clean all targets. 2) In "Groups & Files" -->Target --> expand it --> right click your app and select Clean "your app" 3) Goto->Window-->Organizer 4) In the Devices tab on the le...
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Post-increment and pre-increment within a 'for' loop produce same output [duplicate]

...ode the pre-increment would look like: set i = 0 test: if i >= 5 goto done call printf,"%d",i set i = i + 1 goto test done: nop Post-increment would have at least another step, but it would be trivial to optimize away set i = 0 test: if i >= 5 goto done ...