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ios 数组转化 nsDAtA

char buf[]="123456"; NSData *bufObj=[NSData dataWithBytes:(const void *)buf length:sizeof buf]; if(bufObj==nil) NSLog(@"failed to create obj"); else { NSMutableArray *marr=[NSMutableArray array]; [marr addObject:bufObj]; NSArra...

#import @interface NSObject (JSONCategories) /** * 描述:将NSArray或者NSDictionary转化为NSData * 参数: * 返回值:转化后的NSData * */ -(NSData*)JSONData; /** * 描述:将NSArray或者NSDictionary转化为NSString * 参数: * 返回值:转...

IOS数组可以转换车json对象,转换代码: NSString *str = nil; //字符串 NSMutableString *string = [[NSMutableString alloc] init]; [string appendString:@"xxxx"]; str = [string JSONString]; NSLog(@"str1:%@",[NSString stringWithString...

Byte数组-> NSData Byte byte[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23}; NSData *adata = [[NSData alloc] initWithBytes:byte length:24]; NSData-> NSString NSString *aString = [[NSString alloc] initWithD...

NSString *str = @"AA21f0c1762a3abc299c013abe7dbcc50001DD"; NSData* bytes = [str dataUsingEncoding:NSUTF8StringEncoding]; Byte * myByte = (Byte *)[bytes bytes]; NSLog(@"myByte = %s",myByte);

随着asihttprequest的停止更新,许多人都转向了AFNetworking、 MKNetworkKit.我也是其中一个。于是我从网上找了许多文章作参考,但是结果都是失败告终。研究了好久都搞不透,最后还是请人帮忙搞定了。经常从网上索取免费资料的一员,要有回报的...

1. 这是最快的方法(但相当危险),以获得数组: unsigned char *bytesArray = data.bytes; NSUInteger lengthOfBytesArray = data.length; 试图让字节#100之前,你应该检查lengthOfBytesArray这样的: if (lengthOfBytesArray > 100 + 1) { un...

NSData *data = [NSData new]; /*不可变数组*/ NSArray *array = @[data]; /*可变数组*/ NSMutableArray *mutableArray = [NSMutableArray array]; //添加元素 [mutableArray addObject:data];

NSData *testData = [@“测试数据” dataUsingEncoding: NSUTF8StringEncoding]; Byte *testByte = (Byte *)[testData bytes]; for(int i=0;i

NSData *data = [NSData new];/*不可变数组*/NSArray *array = @[data];/*可变数组*/NSMutableArray *mutableArray = [NSMutableArray array];//添加元素[mutableArray addObject:data];

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