词典数组中的词典--内部监督办公室专家面临的逻辑挑战--“目标C”
面对一些挑战，有没有专家可以帮助我。我面临的问题基本上是把数组字典转换成一个不同对象的字典，这听起来让我很困惑，所以请任何逻辑大师帮助我。我有一组这种格式的记录，
originalArray = [{
"valid": "Y",
"mof": "ON",
"dof": "17-05-2019",
"rtntype": "CODE1",
"ret_prd": "042019",
},
{
"valid": "Y",
"mof": "ON",
"dof": "19-04-2019",
"rtntype": "CODE1",
"ret_prd": "032019",
},
{
"valid": "Y",
"mof": "ON",
"dof": "19-04-2019",
"rtntype": "CODE2",
"ret_prd": "032019",
}
]
我想创建以下格式的字典，请帮助我。
{
"032019" = {
"CODE1" = {
"valid": "Y",
"mof": "ON",
"dof": "19-04-2019",
"rtntype": "CODE1",
"ret_prd": "032019",
},
"CODE2" = {
"valid": "Y",
"mof": "ON",
"dof": "19-04-2019",
"rtntype": "CODE2",
"ret_prd": "032019",
"status": "Filed"
}
},
"042019" = {
"CODE1" = {
"valid": "Y",
"mof": "ON",
"dof": "17-05-2019",
"rtntype": "CODE1",
"ret_prd": "042019",
}
}
}
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这是我的样品，你可以自己检查
NSArray *array = @[ @{@"valid":@"Y",@"mof":@"ON",@"dof":@"17-05-2019",@"rtntype":@"CODE1",@"ret_prd":@"042019"}, @{@"valid":@"Y",@"mof":@"ON",@"dof":@"19-04-2019",@"rtntype":@"CODE1",@"ret_prd":@"032019"}, @{@"valid":@"Y",@"mof":@"ON",@"dof":@"19-04-2019",@"rtntype":@"CODE2",@"ret_prd":@"032019"} ]; NSMutableDictionary *result = [NSMutableDictionary new]; for (int i = 0; i < array.count; i++) { NSDictionary *dict = array[i]; NSString *value = dict[@"ret_prd"]; if (result[value] == nil) { NSArray *filterArray = [array filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"(ret_prd contains[c] %@)", value]]; NSMutableDictionary *filterDict = [NSMutableDictionary new]; for (int i = 0; i < filterArray.count; i++) { filterDict[filterArray[i][@"rtntype"]] = filterArray[i]; } result[value] = filterDict; } } NSLog(@"%@", result);控制台日志的结果：
https://i.stack.imgur.com/WPEBH.png
很长时间没有代码目标-C，所以上面的代码可能很奇怪。如果你不知道在哪里，我会给你解释的。
2019-12-15 16:47:57赞同 展开评论 打赏
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