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  • iOS 第六期考核题(字典的使用)

     NSArray *array = @[CreateDict(@"王思聪", 27, YES),

                               CreateDict(@"范冰冰", 35, NO),

                               CreateDict(@"马云", 51, YES),

                               CreateDict(@"霍建华", 36, YES),

                               CreateDict(@"赵丽颖", 28, NO)];

                    //第1题 请按照年龄的升序排序输出,输出样式为:王思聪,男性,今年27岁

                    //第2题 请输入女性信息,输出样式为:范冰冰大美女,今年35岁

                    //第3题 请将“马云”的年龄改为41岁

     1 NSArray *array = @[CreateDict(@"王思聪", 27, YES),
     2                            CreateDict(@"范冰冰", 35, NO),
     3                            CreateDict(@"马云", 51, YES),
     4                            CreateDict(@"霍建华", 36, YES),
     5                            CreateDict(@"赵丽颖", 28, NO)];
     6         //NSLog(@"%@",array);
    //使用描述器对字典按关键字进行排序 7 NSSortDescriptor *ageSort=[[NSSortDescriptor alloc]initWithKey:@"age" ascending:YES];
    //调用排序方法 返回对象类型是数组类型
    8 NSArray *arr=[[NSArray alloc]initWithObjects:ageSort, nil]; 9 NSMutableArray *newArray=[array sortedArrayUsingDescriptors:arr]; 10 NSString *str=[NSString string]; 11 NSLog(@"第一题------------"); 12 for(NSDictionary *dic in newArray){ 13 if([dic[@"gender"] isEqual:@1]){ 14 str=@"男性"; 15 }else{ 16 str=@"女性"; 17 } 18 NSLog(@"%@,%@,今年%@岁",dic[@"name"],str,dic[@"age"]); 19 } 20 NSLog(@"第二题------------"); 21 for(NSDictionary *dic in array){ 22 if([dic[@"gender"] isEqual:@0]){ 23 NSLog(@"%@大美女,今年%@岁",dic[@"name"],dic[@"age"]); 24 } 25 } 26 NSLog(@"第三题------------"); 27 for(int i=0;i<[newArray count];i++){ 28 NSMutableDictionary *dic = newArray[i]; 29 if([dic[@"name"] isEqual:@"马云"]){ 30 NSLog(@"修改前"); 31 NSLog(@"%@,今年%@岁",dic[@"name"],dic[@"age"]); 32 NSLog(@"修改后"); 33 //NSDictionary *dict=@{@"name":dic[@"name"], 34 // @"age":@41, 35 //@"gender":dic[@"gender"]}; 36 //dic[kAge]=@41; 37 dic[@"age"]=@41; 38 //dic=[NSDictionary dictionaryWithDictionary:dict]; 39 NSLog(@"%@,今年%@岁",dic[@"name"],dic[@"age"]); 40 41 } 42 }
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  • 原文地址:https://www.cnblogs.com/jiangyicheng/p/5113921.html
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