iOS对象（数组）转化为JSon字符串

- (void)seabc

{

NSArray *arry=[NSArray arrayWithObjects:@"0081",@"0082",@"0083", nil];

NSString *ss = [self objArrayToJSON:arry];

NSString * datsa = [NSString stringWithFormat:@"pictures=%@",ss];

NSLog(@"jsonStr==%@",datsa);

NSString *url = [NSString stringWithFormat:@"http://app.y-x-q.cn/index.php/interfaces/Articleapi/test1"];

[RequstHttp postWithPathURL:url params:datsa succes:^(NSData *json) {

NSLog(@"json:%@",[[NSString alloc]initWithData:json encoding:NSUTF8StringEncoding]);

} failure:^(NSError *error) {

}];

}

//把多个json字符串转为一个json字符串

- (NSString *)objArrayToJSON:(NSArray *)array {

NSString *jsonStr = @"[";

for (NSInteger i = 0; i < array.count; ++i) {

if (i != 0) {

jsonStr = [jsonStr stringByAppendingString:@","];

}

jsonStr = [jsonStr stringByAppendingString:array[i]];

}

jsonStr = [jsonStr stringByAppendingString:@"]"];

return jsonStr;

}