Once

متاحة

Evaluates an expression once and returns the cached result

الصيغ

Once[expr]

Once[expr, loc]

أمثلة متحقَّق منهاOnce[result = CloudGet["https://www.wolframcloud.com/objects/ecdc9d78-f517-4682-93d8-790a3de79ee0"]] → CloudGet[https://www.wolframcloud.com/objects/ecdc9d78-f517-4682-93d8-790a3de79ee0]Once[Print["pang"];2] → 2 Once[Print["pong"];1 + 1] → 2الخيارات

ExpirationDate — default None
PersistenceTime — default None

شغّل هذا على Qurak ابحث في المرجع

المواضيع

New In110 Alphabetical Listing - O
Package Development - Initialization
Session Customization - Locale & International Customization»
Summary Of New Features In110 - Evaluation Control
Summary Of New Features In110 - Evaluation Control
Wolfram System Setup - Initialization »

ذات صلة

LocalCache Needs PersistenceLocation ScheduledTask WithCleanup SetOptions Off On

كل الدوال الـ6300 · استخدم هذا من عميل MCP