lr_save_string后无法用lr_eval_string取出参数的值

jylizhihui

各位大大，小弟压测时遇到一个问题，lr_save_string后无法用lr_eval_string取出参数的值，请问该如何才能取出参数{ParamTest1}的值，并打印在日志中。
脚本如下：

Action()
{
    lr_start_transaction("Test");
        lr_think_time(2);
        lr_save_string("hello world","{ParamTest1}");
        lr_log_message("~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~");
    lr_log_message("The value of {ParamTest1} is: %s ! ",lr_eval_string("{ParamTest1}"));
        lr_log_message("~~~~~~~~~~~~~ End ~~~~~~~~~~~~~");
    lr_end_transaction("Test",LR_AUTO);
        return 0;
}


运行结果如下：
Starting action Action.        [MsgId: MMSG-15919]
Action.c(12): Notify: Transaction "Test" started.        [MsgId: MMSG-16999]
Action.c(13): lr_think_time: 2.00 seconds.        [MsgId: MMSG-15948]
Action.c(14): Notify: Saving Parameter "{ParamTest1} = hello world".        [MsgId: MMSG-13798]
~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~        [MsgId: MMSG-17999]
The value of {ParamTest1} is: {ParamTest1} !         [MsgId: MMSG-17999]
~~~~~~~~~~~~~ End ~~~~~~~~~~~~~        [MsgId: MMSG-17999]
Action.c(18): Notify: Transaction "Test" ended with "Pass" status (Duration: 2.0004 Think Time: 1.9997).        [MsgId: MMSG-16872]
Ending action Action.        [MsgId: MMSG-15918]
Ending iteration 1.        [MsgId: MMSG-15965]
Starting iteration 2.        [MsgId: MMSG-15968]
Notify: Next row for parameter ParamTest = 2 [table  = ParamTest].        [MsgId: MMSG-13876]
Notify: Getting new value for parameter 'ParamTest': table = 'ParamTest.dat' column = '0' row = '2'.        [MsgId: MMSG-13877]
Notify: Next row for parameter ParamTest1 = 1 [table  = ParamTest1].        [MsgId: MMSG-13876]
Notify: Getting new value for parameter 'ParamTest1': table = 'ParamTest1.dat' column = '0' row = '1'.        [MsgId: MMSG-13877]
Starting action Action.        [MsgId: MMSG-15919]
Action.c(12): Notify: Transaction "Test" started.        [MsgId: MMSG-16999]
Action.c(13): lr_think_time: 2.00 seconds.        [MsgId: MMSG-15948]
Action.c(14): Notify: Saving Parameter "{ParamTest1} = hello world".        [MsgId: MMSG-13798]
~~~~~~~~~~~~~ Begin ~~~~~~~~~~~~~        [MsgId: MMSG-17999]
The value of {ParamTest1} is: {ParamTest1} !         [MsgId: MMSG-17999]
~~~~~~~~~~~~~ End ~~~~~~~~~~~~~        [MsgId: MMSG-17999]
Action.c(18): Notify: Transaction "Test" ended with "Pass" status (Duration: 2.0009 Think Time: 2.0006).        [MsgId: MMSG-16872]

jylizhihui

哪位大神给帮忙看下啊，多谢了！