Question

我的txt文件看起来像这样

Blue|Big
Red|medium
Yellow|small

从这个txt文件创建NSDictionary的最佳方法是什么？

我考虑过componentsSeparatedByString：@＆＃34; |＆＃34;

输出应该是

@{@"Blue": @"Big", @"Red": @"medium", @"Yellow": @"small"}

编辑：正确格式化文本文件

Answer 1

这应该做：

NSString* text = [NSString stringWithContentsOfURL:someURL encoding:NSUTF8StringEncoding error:NULL];
NSMutableDictionary* dict = [NSMutableDictionary dictionary];
[text enumerateLinesUsingBlock:^(NSString *line, BOOL *stop){
    NSArray* keyAndValue = [line componentsSeparatedByString:@"|"];
    NSString* key = keyAndValue.firstObject;
    NSString* value = keyAndValue.lastObject;
    dict[key] = value;
}];

Answer 2

试试这样： -

//Extracting File Path
NSString* yourFile = [[NSBundle mainBundle] 
               pathForResource:filePath ofType:@"txt"];

//Reading File
NSString* fileContents = 
      [NSString stringWithContentsOfFile:yourFile 
       encoding:NSUTF8StringEncoding error:nil];

//Splitted using pipeline which will return array
NSArray* allLinedStrings =
[fileContents componentsSeparatedByCharactersInSet:
 [NSCharacterSet whitespaceAndNewlineCharacterSet]];

    NSMutableDictionary *dict=[NSMutableDictionary dictionary];
for (NSString *str in allLinedStrings)
{
    NSArray *ar=[str componentsSeparatedByString:@"|"];
    [dict setObject:ar[1]  forKey:ar[0]];
}
NSLog(@"%@",dict);

如何将管道分隔的文本文件读入NSDictionary

2 个答案: