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In computer programming, a temporary variable is a variable whose purpose is short-lived, usually to hold temporary data that will soon be discarded, or before it can be placed at a more permanent memory location. Because it is short-lived, it is usually declared with local scope. There is no formal definition of what makes a variable ''temporary'', but it is an often-used term in programming. A typical example would be that of swapping the contents of two variables. To swap the contents of variables ''a'' and ''b'' one would typically use a temporary variable ''temp'' as follows, so as to preserve the data from ''a'' as it is being overwritten by ''b'': temp := a a := b b := temp Temporary variables are usually named with identifiers that abbreviate the word ''temporary'', such as ''temp'', ''tmp'' or simply ''t'', or with common metasyntactic variable names, the most common of which are ''foo'', ''bar'', ''baz'' (see also foobar). ==See also== *Temporary folder *Temporary file *Temporary filesystem 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「temporary variable」の詳細全文を読む スポンサード リンク
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