大约有 840 项符合查询结果(耗时:0.0200秒) [XML]

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Replacement for deprecated sizeWithFont: in iOS 7?

...iOS 7.0"; if (SYSTEM_VERSION_LESS_THAN(@"7.0")) { // code here for iOS 5.0,6.0 and so on CGSize fontSize = [text sizeWithFont:[UIFont fontWithName:@"Helvetica" size:12]]; } else { // code here for iOS 7.0 CGSize fontSize = [tex...
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How to write lists inside a markdown table?

... spans multiple lines. Second row 5.0 Here's another one. Note the blank line between rows. ------------------------------------------------------------- ...
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dispatch_after - GCD in Swift?

... Simplest solution in Swift 3.0 & Swift 4.0 & Swift 5.0 func delayWithSeconds(_ seconds: Double, completion: @escaping () -> ()) { DispatchQueue.main.asyncAfter(deadline: .now() + seconds) { completion() } } Usage delayWithSeconds(1) { //Do something...
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How to make an AJAX call without jQuery?

... var versions = [ "MSXML2.XmlHttp.6.0", "MSXML2.XmlHttp.5.0", "MSXML2.XmlHttp.4.0", "MSXML2.XmlHttp.3.0", "MSXML2.XmlHttp.2.0", "Microsoft.XmlHttp" ]; var xhr; for (var i = 0; i < versions.length; i++) { try { xhr...
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connecting to MySQL from the command line

... See here http://dev.mysql.com/doc/refman/5.0/en/connecting.html mysql -u USERNAME -pPASSWORD -h HOSTNAMEORIP DATABASENAME The options above means: -u: username -p: password (**no space between -p and the password text**) -h: host last one is name of the database t...
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Update all values of a column to lowercase

... See http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_lower UPDATE table_name SET tag = LOWER(tag) share | improve this answer |...
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How to make rpm auto install dependencies

... 2.6.4-1.fc22 rpmfusion-free-updates 5.0 M fribidi x86_64 0.19.6-3.fc22 fedora 69 k lame-libs x86_64 3.99.5-5.fc22 rpmfusion-free ...
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How should I store GUID in MySQL tables?

...it has is to modify how MySQL does collation. See dev.mysql.com/doc/refman/5.0/en/charset-binary-op.html for more details. Of course you can just use a BINARY type directly if your database editing tool allows you to do that. (Older tools don't know of the binary data type but do know of the binary ...
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How do I use boolean variables in Perl?

... you have different syntax for comparing strings and numbers: my $var1 = "5.0"; my $var2 = "5"; print "using operator eq\n"; if ( $var1 eq $var2 ) { print "$var1 and $var2 are equal!\n"; } else { print "$var1 and $var2 are not equal!\n"; } print "using operator ==\n"; if ( $var1 == $var2 ...
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How to fix “Incorrect string value” errors?

...all your applications. Refer to this page http://dev.mysql.com/doc/refman/5.0/en/blob.html for more details of the differences between TEXT/LONGTEXT and BLOB/LONGBLOB. There are also many other arguments on the web discussing these two. ...