大约有 12,000 项符合查询结果(耗时:0.0318秒) [XML]

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Input with display:block is not a block, why not?

...;![endif]--> </head> <body> <form name="foo" action="#"> <div class="bb">div</div> <input class="bb" size="20" name="bar" value="field"> </form> </body> </html> This solution supports Inte...
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Design patterns or best practices for shell scripts [closed]

...ngful names. declare the variables inside the function as local: function foo { local bar="$0" } Error prone situations In bash, unless you declare otherwise, an unset variable is used as an empty string. This is very dangerous in case of typo, as the badly typed variable will not be reported...
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How to delete or add column in SQLITE?

...--- 0 john doe 20 170 1 foo bar 25 171 Now you want to remove the column height from this table. Create another table called new_person sqlite> CREATE TABLE new_person( ...> id INTEGER PRIMARY KEY, ...
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How to keep environment variables when using sudo

...efully, and pay attention to the -E flag. This works: $ export HTTP_PROXY=foof $ sudo -E bash -c 'echo $HTTP_PROXY' Here is the quote from the man page: -E, --preserve-env Indicates to the security policy that the user wishes to preserve their existing environment varia...
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Is it possible to create a multi-line string variable in a Makefile

... in the command part [This does not work, see comment from MadScientist] foo: echo <<EOF Here is a multiple line text with embedded newlines. EOF share | improve this answer...
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How are Anonymous inner classes used in Java?

...); } }; } 3.)Argument Defined Anonymous inner class: interface Foo { void methodFoo(); } class B{ void do(Foo f) { } } class A{ void methodA() { B b = new B(); b.do(new Foo() { public void methodFoo() { System.out.println("methodFoo"); } ...
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How do I reload .bashrc without logging out and back in?

...and back out. Say you had the following line in .bashrc: export PATH=$PATH:foo, and then you change it to export PATH=$PATH:bar. If you log in and back out, only bar will be in the PATH, but if you do what you suggest, both foo and bar will be in the PATH. Do you know of a way around this? ...
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What's the nearest substitute for a function pointer in Java?

... Main(); if(argv.length == 0) { methodName = "foo"; } else { methodName = "bar"; } method = Main.class.getDeclaredMethod(methodName, int.class); main.car(method, 42); } private void foo(final int x) ...
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AngularJS - How to use $routeParams in generating the templateUrl?

...his issue too - the solution is to do something like $routeProvider.when("/foo", { controller : "FooController", controllerAs : "foo", templateUrl: "foo.html" }); – Erin Drummond Sep 24 '14 at 22:36 ...
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C++11 rvalues and move semantics confusion (return statement)

...ou to write containers that have overloads for both const reference (const foo& other) and rvalue reference (foo&& other). Even if the argument is too unwieldy to pass with a mere constructor call it can still be done: std::vector vec; for(int x=0; x<10; ++x) { // automatically...