保存するkeyによって、NSUserDefaultsの保存先を変える

def.m

-(NSUserDefaults*)GetDef:(NSString*)key{
    NSString *subStr = [key substringFromIndex:[key length] - 1];
    NSString *defKey = [NSString stringWithFormat:@"%d%@", [key length], subStr];
    
    NSUserDefaults* def = [[NSUserDefaults alloc] initWithSuiteName:defKey];
    return def;
}