Question

在这段代码中我读了一个文件txt：这个txt文件有这样的信息：一个＃2＃3＃4＃5;一个＃2＃3＃4＃5;

- (void) readFile{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"File.txt"];
NSString *fileString = [NSString stringWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:NULL];

if (!fileString) {
    NSLog(@"Error reading file.");
} 

NSMutableArray *itemDB = [[fileString componentsSeparatedByString:@";"] mutableCopy]; 
[itemDB removeLastObject];

NSMutableArray *returnArray = [[NSMutableArray alloc] init];

for (int i = 0; i<[itemDB count]; i++) {

    NSArray *datiItemDB = [[itemDB objectAtIndex:i] componentsSeparatedByString:@"#"];
    [returnArray addObject: datiItemDB]; 
}

one = [[NSMutableArray alloc] initWithArray:(NSArray*)returnArray]; 

[returnArray release];
}

此数组的nslog结果为

2011-07-04 10:01:16.847 Project[254:707] array one:(
    (
    "(\n    0,\n    1,\n    12,\n    \"2011-07-04 08:00:41 +0000\",\n    \"2011-07-15 00:00:00 +0000\",\n    \"\",\n    0,\n    0,\n        (\n    ),\n    \"\"\n)"
)
)

但我希望nslog的结果是

2011-07-04 09:52:07.281 Project[230:707] array one:(
    (
    0,
    1,
    1,
    "2011-07-04 07:45:15 +0000",
    "2011-07-04 07:45:15 +0000",
    "",
    0,
    0,
            (
    ),
    ""
)
)

为什么我有“/ n”符号，如何从数组中删除它？

Answer 1

您是否只想将文本文件的第一部分放在数组中？我认为你的问题太复杂了。这样的事情怎么样：

NSString *inputString = @"one#two#three#four#five;one1#two2#three3#four4#five5;";
NSArray *arrayFromInputString = [inputString componentsSeparatedByString:@";"];
NSArray *component1 = [[arrayFromInputString objectAtIndex:0] componentsSeparatedByString:@"#"];
NSLog(@"1: %@", [component1 description]);
NSArray *component2 = [[arrayFromInputString objectAtIndex:1] componentsSeparatedByString:@"#"];
NSLog(@"2: %@", [component2 description]);

如果你运行它，输出是

[777:207] 1: (
    one,
    two,
    three,
    four,
    five
)
[777:207] 2: (
    one1,
    two2,
    three3,
    four4,
    five5
)

这是你想要的吗？如果没有，你能尝试更好地解释吗？

IOS：nsarray布局的问题

1 个答案: