loadrunner添加变量检查点

LoadRunner设置登陆检查点
login()
{

    lr_think_time();

    web_url("passport2",
        "URL=http://test232.pclady.com.cn:7003/passport2/",
        "Resource=0",
        "RecContentType=text/html",
        "Referer=",
        "Snapshot=t1.inf",
        "Mode=HTTP",
        LAST);

    web_submit_data("login.jsp",
        "Action=http://test232.pclady.com.cn:7003/passport2/passport/login.jsp",
        "Method=POST",
        "RecContentType=text/html",
        "Referer=http://test232.pclady.com.cn:7003/passport2/",
        "Snapshot=t2.inf",
        "Mode=HTTP",
        ITEMDATA,
        "Name=username", "Value={username}", ENDITEM,
        "Name=password", "Value=123456", ENDITEM,
        "Name=return", "Value=http://test232.pclady.com.cn:7003/passport2/ok.jsp", ENDITEM,
        "Name=track", "Value=http://test232.pclady.com.cn:7003/passport2/v.jsp", ENDITEM,
        "Name=loginUri", "Value=http://test232.pclady.com.cn:7003/passport2/v.jsp?a=b&c=d", ENDITEM,
        LAST);

   web_reg_find("Text={username}",
             "SaveCount=count",
             LAST);

//注明:内容都在ok.jsp页面上，所以在此请求上添加检查点函数
    web_url("passport2",
        "URL=http://test232.pclady.com.cn:7003/passport2/ok.jsp",
        "Resource=0",
        "RecContentType=text/html",
        "Referer=",
        "Snapshot=t1.inf",
        "Mode=HTTP",
        LAST);

    lr_output_message(lr_eval_string("{count}"));

    if (atoi(lr_eval_string("{count}")) > ){

              lr_output_message("Log on successful.");

              }

        else{

              lr_error_message("Log on failed");

              lr_start_transaction("login");

              login();

              lr_end_transaction("login",LR_PASS);

              return();

        }

    return ;
}