我有一个由其他数组组成的数组:
示例我的数组里面有两个数组:
myArray = [(element1,element2,element3)],[(element4,element5,element6)] 这只是一个示例,表明myArray有两个数组(这些元素是字符串)
现在我希望以这种方式在txt文件中写入这些元素:
element1#element2#element3;element4#element5#element6;
创建此字符串以在txt文件中写入的代码是什么?
答案 0 :(得分:16)
NSMutableString *printString = [NSMutableString stringWithString:@""];
for(i=0;i<[myArray count];i++)
{
for (NSString element in [myArray objectAtIndex:i])
{
[printString appendString:[NSString stringWithFormat:@"%@#",element] ];
}
[printString appendString:@";"];
}
//CREATE FILE
NSError *error;
// Create file manager
//NSFileManager *fileMgr = [NSFileManager defaultManager];
NSString *documentsDirectory = [NSHomeDirectory()
stringByAppendingPathComponent:@"Documents"];
NSString *filePath = [documentsDirectory
stringByAppendingPathComponent:@"fileArray.txt"];
NSLog(@"string to write:%@",printString);
// Write to the file
[printString writeToFile:filePath atomically:YES
encoding:NSUTF8StringEncoding error:&error];