(//从字符A中分隔成元素的数组
NSArray *array = [NSString componentsSeparatedByString:@","];
我写的是所有的数据都以键值对的形式存在字典里
//取出所有字典
NSArray * arr = [addDicAll allKeys];
//排序
arr = [arr sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2){
NSComparisonResult result = [obj1 compare:obj2];
return result==NSOrderedDescending;
}];
//根据key取出value
for (NSString * dicK in arr) {
NSMutableArray * array = [NSMutableArray array];
array = [addDicAll objectForKey:dicK];
[arrayAll addObject:array];
}
//拼接
NSString *sign = [arrayAll componentsJoinedByString:@","];
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