}
NSArray *array = [[NSArray alloc] initWithObjects:@"内容",@"content",nil];
NSString *filePath = [docDir stringByAppendingPathComponent:@"testFile.txt"];
[array writeToFile:filePath atomically:YES];
7、写入文件 复制代码
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docDir = [paths objectAtIndex:0];
NSString *filePath = [docDir stringByAppendingPathComponent:@"testFile.txt"];
NSArray *array = [[NSArray alloc]initWithContentsOfFile:filePath];
NSLog(@"%@", array);
8、判断一个文件是否存在,传入全路径(fileExistsAtPath)
复制代码// 创建文件管理器
NSFileManager * fileManager = [NSFileManager defaultManager];
NSString * documents = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)lastObject];
NSString * filePath = [documents stringByAppendingPathComponent:@"test"];
// 判断一个文件是否存在,传入全路径
if ([fileManager fileExistsAtPath:filePath]) {
NSLog(@"it is exit");
}
9、在Documents里创建目录
复制代码NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSLog(@"documentsDirectory%@",documentsDirectory);
NSFileManager *fileManager = [NSFileManager defaultManager];
NSString *testDirectory = [documentsDirectory stringByAppendingPathComponent:@"test"];
// 创建目录
[fileManager createDirectoryAtPath:testDirectory withIntermediateDirectories:YES attributes:nil error:nil];
10、在目录下创建文件
