#pragma mark -
#pragma mark 版本比較方法
//比較版本的方法，在這裡我用的是Version來比較的
- (BOOL)compareVersionsFormAppStore:(NSString*)AppStoreVersion WithAppVersion:(NSString*)AppVersion{
    
    BOOL littleSunResult = false;
    
    NSMutableArray* a = (NSMutableArray*) [AppStoreVersion componentsSeparatedByString: @"."];
    NSMutableArray* b = (NSMutableArray*) [AppVersion componentsSeparatedByString: @"."];
    
    while (a.count < b.count) { [a addObject: @"0"]; }
    while (b.count < a.count) { [b addObject: @"0"]; }
    
    for (int j = 0; j<a.count; j++) {
        if ([[a objectAtIndex:j] integerValue] > [[b objectAtIndex:j] integerValue]) {
            littleSunResult = true;
            break;
        }else if([[a objectAtIndex:j] integerValue] < [[b objectAtIndex:j] integerValue]){
            littleSunResult = false;
            break;
        }else{
            littleSunResult = false;
        }
    }
    return littleSunResult;//true就是有新版本，false就是沒有新版本
    
}