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NSMutableArray *array = [[NSMutableArray alloc] init];
NSInteger num = 7;
NSNumber *number = [NSNumber numberWithInt:num];
[array addObject:number];
NSLog(@"Array %@",array);
iOS NSMutableArray添加NSInteger元素
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原文地址:http://www.cnblogs.com/liuting-1204/p/5635383.html