Condition

可用

Represents a pattern with a condition test (pattern /; test).

形式

patt /; test

lhs :> rhs /; test

lhs := rhs /; test

验证过的示例Condition[x_, x > 0] → x_ /; x > 0

在 Qurak 上运行搜索参考

主题

Conditionals - Pattern-Based Conditionals »
Language Overview - Pattern Matching »
Patterns - Restrictions on Patterns
Robustness And Error Handling - Function Argument Checking
Rules And Patterns - Rules »
Syntax - Patterns

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