[OC学习笔记]NSNumber创建方法和检索方法

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创建和初始化方法 初始化实例方法 检索实例方法 numberWithChar: initWithChar: charValue numberWithUnsignedChar: initWithUnsignedChar: unsignedCharValue numberWithShort: initWithShort: shortValue numberWithUnsignedShort: initWithUnsignedShort: unsignedShortValue numberWithInteger: initWithInteger: integerValue numberWithUnsignedInteger: initWithUnsignedInteger: unsignedIntegerValue numberWithInt: initWithInt: intValue numberWithUnsignedInt: initWithUnsignedInt: unsignedIntValue numberWithLong: initWithLong: longValue numberWithUnsignedLong: initWithUnsignedLong: unsignedLongValue numberWithLongLong: initWithLongLong: longLongValue numberWithUnsignedLongLong: initWithUnsignedLongLong: unsignedLongLongValue numberWithFloat: initWithFloat: floatValue numberWithDouble: initWithDouble: doubleValue numberWithBool: initWithBool: boolValue
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