LoadRunner 生成随机字符串使用

使用LoadRunner过程中提交的订单使用变量来确认数据不会出现重复，不影响后续的业务流程，具体实现如下：

Action()
{
    int itera_num,rand_num,i;
    char i_name[24]="";
    char StrTable[]="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";

    for (i=0;i<=8;i++){
        rand_num=rand()%62;
        strncat(i_name,StrTable+rand_num,1);
    }

    lr_save_string(i_name,"i_name_value");

    lr_log_message("i_name== %s", i_name);


    //i_name_value即为可传入参数
    lr_log_message("i_name_value== %s", lr_eval_string("{i_name_value}"));

    web_submit_data("login",
        "Action=http://www.xxx.com/user/login",
        "Method=POST",
        "Mode=HTTP",
        "EncodeAtSign=YES",
        ITEMDATA,
        "Name=userName", "Value={i_name_value}", ENDITEM,
        "Name=password", "Value=111111", ENDITEM,
        "Name=captcha", "Value=", ENDITEM,
    LAST);

}

参考文档：
http://blog.itpub.net/6110/viewspace-809063/
http://www.51testing.com/html/11/103211-129994.html