小编Mar*_*erg的帖子

我是openCV的新手,最近获得了openCV 2.4.7的预编译版本,并成功地将其与visual studio 2010集成.

显然库似乎工作正常,但当我尝试使用imshow显示图像时,它显示窗口但不显示图像.

{
    cv::Mat image = cv::imread("F:/office_Renzym/test3.jpg",CV_LOAD_IMAGE_UNCHANGED);

    if(image.empty())
    {
        cout<<"image not loaded";
    }
    else
    {
        cv::namedWindow( "test", CV_WINDOW_AUTOSIZE );
        cv::imshow("test",image);
    }   
}

任何帮助将受到高度赞赏.

是什么区别List<Integer>和List<? super Integer>。

哪个是好的做法或什么时候应该使用什么？

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1

我的代码:

public static void loanenquiry(String ApplicationID,String LoanNumber,String RIMNumber,String custname,String fromdate,String todate) {
    String wherestring = "SELECT * FROM bf_loanmaster WHERE";       

    try {
        if(ApplicationID != null) {
            wherestring = wherestring + "ApplicationID ="+BillAction.StringtoInt(ApplicationID)+"";
        }

        if(LoanNumber != null ) {
            if(ApplicationID != null) {
                wherestring =  wherestring  +  "AND LoanNumber = "+BillAction.StringtoInt(LoanNumber)+" "; …