DigitQ

可用

Tests whether a string consists entirely of digit characters.

形式

DigitQ[string]

已驗證的範例DigitQ["123"] → True DigitQ["12a"] → False

在 Qurak 上執行搜尋參考文件

主題

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

相關

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

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