DigitQ

可用

Tests whether a string consists entirely of digit characters.

形式

DigitQ[string]

验证过的示例DigitQ["123"] → True DigitQ["12a"] → False

在 Qurak 上运行搜索参考

主题

Character Operations - Character Types
Summary Of New Features In143 - Functions Enhanced in Compiled Code
Summary Of New Features In143 - Functions Enhanced in Compiled Code
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Summary Of New Features In150 - Functions Enhanced in Compiled Code
Testing Expressions - String Tests »

相关

LetterQ Number StringExpression PrintableASCIIQ Characters ArcTan Array Cases Ceiling ContainsAll ContainsAny ContainsExactly

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