Objective-C中把数组中字典中的数据转换成URL

//定义字典键

#define A @"a"

#define B @"b"

#define C @"c"

#define D @"d"

//容纳字符串拼接后的字符串

NSMutableArray *arrayURL = [NSMutableArraynew];

//存放可变字典的数组

NSMutableArray *arrayDic = [NSMutableArraynew];

//生成测试数据

NSDictionary *dic1 = @{A : @10,

B : @20};

NSDictionary *dic2 = @{A : @10,

B : @20,

C : @30};

NSDictionary *dic3 = @{A : @10,

C : @30};

//把数组加入字典

[arrayDic addObject:dic1];

[arrayDic addObject:dic2];

[arrayDic addObject:dic3];

//从数组中取出字典，把每个然后拼接成url

for(inti = 0; i < arrayDic.count; i ++)

{

NSLog(@"对数组中第%d个字典操作\n:%@",i+1 ,arrayDic[i]);

//URL

NSMutableString *URL = [NSMutableString stringWithFormat:@"http://www.baidu.com"];

//获取字典的所有keys

NSArray * keys = [arrayDic[i] allKeys];

//拼接字符串

for(intj = 0; j < keys.count; j ++)

{

NSString *string;

if(j == 0)

{

//拼接时加？

string = [NSString stringWithFormat:@"?%@=%@", keys[j], arrayDic[i][keys[j]]];

}

else

{

//拼接时加&

string = [NSString stringWithFormat:@"&%@=%@", keys[j], arrayDic[i][keys[j]]];

}

//拼接字符串

[URL appendString:string];

}

NSLog(@"第%d个字典转换的URL:%@",i+1, URL);

//加入数组

[arrayURL addObject:URL];

}

2014-08-12 11:41:18.927 HelloOC[997:303] 转换完成：

(

"http://www.baidu.com?a=10&b=20",

"http://www.baidu.com?a=10&b=20&c=30",

"http://www.baidu.com?a=10&c=30"

)