考核题 7

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        
    //1.以下是身份证号，输出身份证人的性别，年龄
        NSLog(@"第一题");
        NSString *idCard=@"210423198809040427";
        //身份证倒数＃2位是偶数则为女生
        NSRange range1;
        NSRange range2;
        range1.length=1;
        range1.location=16;
        range2.length=4;
        range2.location=6;
        NSString *newid1=[idCard substringWithRange:range1];
        NSString *newid2=[idCard substringWithRange:range2];
        int num1=[newid1 intValue];
        int result=num1/2;
        int num2=[newid2 intValue];
        int age=2016-num2;
        if (result) {
            NSLog(@"性别:女 年龄:%d",age);
        }else{
            NSLog(@"性别:男 年龄:%d",age);
        }
        
    //2.将字典的key从Z->A排序，按排序后的key的顺序，输出value，将value按字符串输出
        NSLog(@"第二题");
        NSDictionary *dict=@{@"R":@"e",
                             @"T":@"e",
                             @"D":@"b",
                             @"S":@"u",
                             @"K":@"a",
                             @"A":@"s",
                             @"O":@" ",
                             @"N":@"p",
                             @"B":@"b",
                             @"J":@"u",
                             @"F":@" ",
                             @"U":@"t",
                             @"H":@"l",
                             @"E":@"j",
                             @"Z":@"s",
                             
                             };
        NSArray *dic=[dict allKeys];
        NSArray *newdic=[dic sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
            return [obj2 compare:obj1];
        }];
        NSMutableString *newValue=[NSMutableString string];
        for (int i;i<newdic.count;i++) {
            id key=[newdic objectAtIndex:i];
            NSString *value=[dict objectForKey:key];
            [newValue appendString:value];
        }
        NSLog(@"%@",newValue);
    }
    return 0;
}