objective c - @class vs. import -


संभावित डुप्लिकेट:

नमस्ते

क्या कोई उद्देश्य वर्ग में @ वर्ग और आयात के बीच का अंतर समझा सकता है? मैं कब का उपयोग करेगा? क्या यह बेहतर है / अधिक कुशल?

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