Check

可用

Returns its first argument unless a message is emitted, in which case

形式

Check[expr, failexpr]

Check[expr, failexpr, {s1 :: t1, s2 :: t2, …}]

Check[expr, failexpr, "name"]

已驗證的範例Check[1/2, error] → 1/2

在 Qurak 上執行搜尋參考文件

主題

Conditionals - Program Execution Conditionals
Messages - Messages in Notebooks
New In70 Core Language - New in Message Handling
Package Development - Messages »
Robustness And Error Handling - Low-Level Error Handling
Scoping Constructs - Other Forms of Scoping

相關

Catch ConfirmQuiet MessageList Message Quiet Indeterminate TimeConstrained CheckAbort Assert Off On MessageName

全部 6300 個函式 · 從 MCP 用戶端使用這個