How can I use the "label" version of List.nth in OCaml? -

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तो मूल रूप से मैं कुछ ओकैमल कोड लिख रहा हूँ जैसे: 

  चलो p_op p = show .show & LT; सेशन & gt; पी | & gt; Str.split (Str.regexp "+") | & gt; सूची। एनथ आइटम्स 1 (आइटम स्ट्रैट्स के परिणाम हैं) | & gt; String.lowercase

तो समस्या यह है कि मैं कैसे Str.split के List.nth के लिए निहित तरीके से पारित कर सकता हूं?

अगर मुझे label का list.nth पता है, तो मुझे लगता है कि मैं यह कर सकता हूं, 

  सूची । Nth ~ num: 1

लेकिन मूल रूप में मैं कोर का उपयोग नहीं करता हूं, मुझे नहीं पता कि कैसे label list.nth कोई मुझे कुछ मदद दे सकता है?

फिर शायद मुझे लेबल के साथ List.nth को लपेटने की आवश्यकता है?

यह देखने के लिए स्पष्ट स्थान ListLabels में है। लेकिन जो भी कारण से ListLabels.nth के पैरामीटर लेबल नहीं हैं!

आप flip का उपयोग कर सकते हैं: 

  फ़्लिक करें Fxy = fyx ... | & gt; फ्लिप लिस्ट.नेट 1 | & gt; ...

फ्लिप को ओकैम बैटरियों में परिभाषित किया गया है, जैसे कि BatPervasives.flip (और भी कोर में)।


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