web_reg_save_param函数ORD怎么随机选择保存在数组中的数值呢

leaflower · 发表于 2009-6-9 18:04:43

下面是LR中的例子，如果ORD选择All, it saves the parameter values in an array.但是保存在数组里之后，怎么随机选择其中一项呢？

To reserve the default flight, save the "checked" value, and pass it to web_submit_form. The html segment for the default value is:

name=outboundFlight value=230;378;11/20/2003 checked >

/*This web_reg_save_param call applies to the following action function: web_submit_form. */

web_reg_save_param("outFlightVal",

"LB=outboundFlight value=", "RB= checked >", LAST);

web_submit_form("reservations.pl",

      "Snapshot=t4.inf",

      ITEMDATA,

      "Name=depart", "Value=London", ENDITEM,

      "Name=departDate", "Value=11/20/2003", ENDITEM,

      "Name=arrive", "Value=New York", ENDITEM,

      "Name=returnDate", "Value=11/21/2003", ENDITEM,

      "Name=numPassengers", "Value=1", ENDITEM,

      "Name=roundtrip", "Value=<OFF>", ENDITEM,

      "Name=seatPref", "Value=None", ENDITEM,

      "Name=seatType", "Value=Coach", ENDITEM,

      "Name=findFlights.x", "Value=83", ENDITEM,

      "Name=findFlights.y", "Value=16", ENDITEM,

      LAST);

/*

The result of the web_reg_save_param having been called before the web_submit_form is:

Action.c(15): Notify: Saving Parameter "outFlightVal = 230;378;11/20/2003"

*/

// Now use the saved outFlightVal

web_submit_form("reservations.pl_2",

      "Snapshot=t5.inf",

      ITEMDATA,

      "Name=outboundFlight", "Value={outFlightVal}", ENDITEM,

      "Name=reserveFlights.x", "Value=92", ENDITEM,

      "Name=reserveFlights.y", "Value=10", ENDITEM,

      LAST);

/*

Action.c(34): Notify: Parameter Substitution: parameter "outFlightVal" = "230;378;11/20/2003" */



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Case requiring handling arrays
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If you want to test the last option returned by the web_submit_form call, save all the matches and then handle the array.

This example shows the use of web_reg_save_param with "ORD=ALL" to get an array of parameters. The last item in the array is then used to correlate a web_submit_form call.

char outFlightParam[50]; // The name of the parameter for correlation

char outFlightParamVal[50]; // The formatted value of outFlightParam

/*

This web_reg_save_param call applies to the following action function, web_submit_form. Because of the "ORD=ALL" argument, it saves all the values that have the given left and right boundaries to an array of parameters.

The SaveLen argument is used to restrict the length to 18 characters because the default value is "230;378;11/20/2003 checked >". We restrict the length so as not to capture the " checked ".

*/

web_reg_save_param("outFlightVal",

      "LB=outboundFlight value=", "RB=>",

     "ORD=ALL",

      "SaveLen=18",

      LAST);

web_submit_form("reservations.pl",

      "Snapshot=t4.inf",

      ITEMDATA,

      "Name=depart", "Value=London", ENDITEM,

      "Name=departDate", "Value=11/20/2003", ENDITEM,

      "Name=arrive", "Value=New York", ENDITEM,

      "Name=returnDate", "Value=11/21/2003", ENDITEM,

      "Name=numPassengers", "Value=1", ENDITEM,

      "Name=roundtrip", "Value=<OFF>", ENDITEM,

      "Name=seatPref", "Value=None", ENDITEM,

      "Name=seatType", "Value=Coach", ENDITEM,

      "Name=findFlights.x", "Value=83", ENDITEM,

      "Name=findFlights.y", "Value=16", ENDITEM,

      LAST);

/*

The result of the web_reg_save_param having been called before the web_submit_form is:

Notify: Saving Parameter "outFlightVal_1 = 230;378;11/20/2003"

Notify: Saving Parameter "outFlightVal_2 = 231;337;11/20/2003"

Notify: Saving Parameter "outFlightVal_3 = 232;357;11/20/2003"

Notify: Saving Parameter "outFlightVal_4 = 233;309;11/20/2003"

Notify: Saving Parameter "outFlightVal_count = 4"
The next problem is to get the highest array element, identified with the parameter outFlightVal_count. This parameter is automatically created by the script recorder. You do not have to enter anything in the script.

*/

/* Get the name of the parameter, in this case "outFlightVal_4".

Put it in brackets so it can be an input to an lr_eval_string call.

Note that the brackets in the second argument to sprintf are not indicating a script parameter to sprintf. They are string literals that will be part of outFlightParam after the call.

In the second call to sprintf, those brackets indicate a parameter to lr_eval_string.

*/

sprintf(outFlightParam, "{outFlightVal_%s}",

      lr_eval_string("{outFlightVal_count}"));

/* outFlightParam is now "{outFlightVal_4}" */

/* Now get the "Value" argument for web_submit_form, in the

      format "Value=xxxx")

*/

sprintf(outFlightParamVal, "Value=%s",

      lr_eval_string(outFlightParam));

lr_message("The value argument is : %s", outFlightParamVal);

// The value argument is : Value=233;309;11/20/2003

/* Now the string outFlightParamVal can be passed

      to web_submit_form */

web_submit_form("reservations.pl_2",

      "Snapshot=t5.inf",

      ITEMDATA,

      "Name=outboundFlight",outFlightParamVal, ENDITEM,

      "Name=reserveFlights.x", "Value=92", ENDITEM,

      "Name=reserveFlights.y", "Value=10", ENDITEM,

      LAST);