IOS-寫檔案到本地
-(void)writeToFileWithString:(NSString*)string withFileName:(NSString*)fileName{ //@"Map_Succ.txt" NSString* fileName1 = [self filePath:fileName]; NSFileManager* fileManager = [NSFileManager defaultManager]; NSString* str = nil; if ( [fileManager fileExistsAtPath:fileName1]) { NSData* data = [NSData dataWithContentsOfFile:fileName1]; str =[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; string = [NSString stringWithFormat:@"%@\n%@",str,string]; } [fileManager createFileAtPath:fileName1 contents:[ string dataUsingEncoding:NSUTF8StringEncoding] attributes:nil];}
- (NSString*)filePath:(NSString*)fileName { NSArray* myPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString* myDocPath = [myPaths objectAtIndex:0]; NSString* filePath = [myDocPath stringByAppendingPathComponent:fileName]; return filePath;}