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loadrunner12.55：常用函数汇总说明之Parameter Functions参数函数

函数 常用 参数 说明 汇总 Parameter Functions
2023-09-14 09:01:11 时间

根据使用手册内容可见，LR支持的关于Parameter Functions包括：

 

 

1、 lr_save_int & lr_eval_string：

lr_save_int_Func_lr_eval_string_Func()
{
	
	lr_save_int(20, "param1");//保存整数到参数中
	lr_output_message("lr_output_message=%s",lr_eval_string("{param1}"));//lr_eval_string返回脚本中的参数当前的值（从参数中取得对应的值，并且转换为一个字符串）。
	
	return 0;
}

 2、lr_save_string：

 

lr_save_string_Func()
{
	char *tmp="hello";
	lr_save_string("192.168.10.35","ip"); //将常量保存为参数ip
	lr_save_string(tmp,"miao");     //将变量tmp保存为参数miao
	lr_output_message(lr_eval_string("{ip}"));
	lr_output_message(lr_eval_string("{miao}"));
	
	return 0;
}

 3、lr_save_var

lr_save_var_Func()
{
    #define MAX_NAME_LEN 4		
// Create the parameter, InName
    lr_save_string("Fitzwilliam", "InName");		
// Save the first four characters of "InName" to "ShortName"
    lr_save_var( lr_eval_string("{InName}"),MAX_NAME_LEN, 0, "ShortName");//将可变长度的字符串保存为参数；		
    lr_output_message("ShortName value is %s", lr_eval_string("{ShortName}"));	
	return 0;
}

 

4、lr_save_timestamp

 

lr_save_timestamp_Func()
{
    lr_save_timestamp("param", LAST );//时间戳以默认的13个字符的长度保存-历元时间加毫秒。
    lr_output_message(lr_eval_string("{param}"));
    lr_save_timestamp("param", "DIGITS=10", LAST );//保存时间戳，并指定10位数字的长度-纪元时间（以秒为单位）。
    lr_output_message(lr_eval_string("{param}"));
	lr_save_timestamp("param", "DIGITS=16", LAST );//保存时间戳，并指定16位数字的长度-纪元时间加微秒。
	lr_output_message(lr_eval_string("{param}"));    
	
	return 0;
}

 

 5、lr_save_datetime

 

lr_save_datetime_Func()
{
	//void lr_save_datetime( const char *format, int offset, const char *name );将当前日期和时间分配给参数。
	
    lr_save_datetime("Tomorrow is %B %d %Y", DATE_NOW + ONE_DAY, "next");//获取明天日期
    lr_output_message(lr_eval_string("{next}"));
    // Output: Action.c(4): Tomorrow is 四月 22 2021
    lr_save_datetime("%Y-%m-%d", DATE_NOW, "dateReceived"); //按照"%Y-%m-%d"格式输出当前日期
    lr_output_message(lr_eval_string("{dateReceived}"));
    // Output: Action.c(7): 2021-04-21
    lr_save_datetime("%m/%d/%Y %H:%M", DATE_NOW, "currDateTime0"); //按照"%m/%d/%Y %H:%M"格式输出当前时间
    lr_output_message(lr_eval_string("{currDateTime0}"));
    // Output: Action.c(10): 04/21/2021 10:10
    lr_save_datetime("%Y-%m-%d %H:%M:%S", DATE_NOW, "currDateTime1"); //按照"%m/%d/%Y %H:%M"格式输出当前时间
    lr_output_message(lr_eval_string("{currDateTime1}"));
	// Output: Action.c(13): 2021-04-21 10:10:58

	
	return 0;
}

 

6、lr_eval_json

 

lr_eval_json_Func()
{
	//int lr_eval_json( "Buffer or Buffer/File = <buffer>", "JsonObject = <parameter name>" );
	//从字符串或文件创建JSON对象。
	
	char* json_input = "{"
		"\"firstName\": \"John\","
		"\"lastName\": \"Smith\","
		"\"address\": {"
		"    \"streetAddress\":\"21 2nd Street\","
		"    \"city\":\"New York\","
		"    \"state\":\"NY\","
		"    \"postalCode\":\"10021\""
		"}"		
		"}";
	lr_save_string(json_input, "JSON_Input_Param");
	
	// Create a Json object from a string.
	lr_eval_json("Buffer={JSON_Input_Param}",
	             "JsonObject=json_obj_1", LAST);
	
	// // Create a Json object from a file.
	lr_eval_json("Buffer/File=D:\\LR TraningCourse\\Functions\\store.json", 
	             "JsonObject=json_obj_2", LAST);
	
	return 0;
}

7、lr_json_stringify

 

lr_json_stringify_Func()
{
    char *json_input = 
        "{" 
            "\"cart\":" 
                "{" 
                    "\"customerId\":1343," 
                    "\"lineItems\":" 
                    "[ {\"productId\":12343,\"quantity\":4}, " 
                    "  {\"productId\":39293,\"quantity\":2} ]" 
                "}" 
            "}"; 
    lr_save_string (json_input, "JSON_Input"); 
    lr_eval_json ("Buffer={JSON_Input}", "JsonObject=JSON_Param");
    
    //compact
    lr_json_stringify("JsonObject=JSON_Param","Format=compact","OutputParam=Result",LAST );
    lr_output_message("Compact JSON is : %s", lr_eval_string("{Result}"));
    
    //indented
    lr_json_stringify("JsonObject=JSON_Param","Format=indented","OutputParam=Result",LAST );
    lr_output_message("Indented JSON is : %s", lr_eval_string("{Result}"));
    
    //auto
    lr_json_stringify("JsonObject=JSON_Param","Format=auto","OutputParam=Result",LAST );
    // Result is indented in VuGen and Compact on the Controller.
    lr_output_message("Auto JSON is : %s", lr_eval_string("{Result}"));
    
	return 0;
}

Vugen输出：

 

 

Controller输出：

 

8、lr_json_get_values

 

lr_json_get_values_Func()
{
	//int lr_json_get_values( "JsonObject=<parameter name>", "ValueParam=<parameter name>", "QueryString=<JSON query>", ["SelectAll=<Yes|No>",] ["NotFound=<Error|Continue>",] LAST ); 

	int i;
	
	// See File: store.json
	i = lr_eval_json("Buffer/File=D:\\LR TraningCourse\\Functions\\store.json", 
	                 "JsonObject=s_json_obj", LAST);
	//【1】 Single match
	i = lr_json_get_values("JsonObject=s_json_obj",
                "ValueParam=s_new_storename",
                "QueryString=$.store.name",
                 LAST);
	if (i != 1)
		lr_error_message("lr_json_get_values should return %d, but returns %d", 1, i);
	
	//【2】 Multi match with SelectAll=No
	i = lr_json_get_values("JsonObject=s_json_obj",
                "ValueParam=s_firstauthor",
                "QueryString=$.store.books[*].author",
                 LAST);	
	if (i != 1)
		lr_error_message("lr_json_get_values should return %d, but returns %d", 1, i);	
	
	
	lr_save_string("$.store.books[*].author", "s_path_author");
	
	// Multi match with SelectAll=Yes	
	i = lr_json_get_values("JsonObject=s_json_obj",
                "ValueParam=s_new_author",
                "QueryString={s_path_author}",
	            "SelectAll=Yes",
                 LAST);

	
	return 0;
}

 

9、lr_json_set_values

lr_json_set_values_Func()
{
	int i;
	
	// See File: store.json
	i = lr_eval_json("Buffer/File=D:\\LR TraningCourse\\Functions\\store.json", 
	                 "JsonObject=s_json_obj", LAST);

	
	//【1】 Single match
	i = lr_json_set_values("JsonObject=s_json_obj",
	                "Value=\"\Red Books\"",
	                "QueryString=$.store.name",
	                 LAST);	
	if (i != 1)
		lr_error_message("lr_json_set_values should return %d, but returns %d", 1, i);
	
	// Test Get Values
	i = lr_json_get_values("JsonObject=s_json_obj",
                "ValueParam=s_new_storename",
                "QueryString=$.store.name",
                 LAST);
	if (i != 1)
		lr_error_message("lr_json_get_values should return %d, but returns %d", 1, i);
	
	//【2】 Multi match with SelectAll=No
	i = lr_json_set_values("JsonObject=s_json_obj",
	                "Value=\"Ellie\"",
	                "QueryString=$.store.books[*].author",
	                 LAST);	
	if (i != 1)
		lr_error_message("lr_json_set_values should return %d, but returns %d", 1, i);

	i = lr_json_get_values("JsonObject=s_json_obj",
                "ValueParam=s_new_firstauthor",
                "QueryString=$.store.books[*].author",
                 LAST);
	
	if (i != 1)
		lr_error_message("lr_json_get_values should return %d, but returns %d", 1, i);
	
	
	//【3】 Multi match with SelectAll=Yes
	
	lr_save_string("\"1111\"", "s_author_1"); 
	lr_save_string("\"2222\"", "s_author_2"); 
	lr_save_string("\"3333\"", "s_author_3"); 
	lr_save_string("3", "s_author_count");//待设置数据的个数,建议设置个数与实际数据的个数保持一致，否则出现如下异常情况：若不设置该项，则所有匹配项数据将设置为空；若该值为0，则报错提示没有找到匹配项；若该值为1，则所有匹配项均设置为第一个实际数据；若该值大于1且小于匹配数4，则按序获取实际数据进行匹配项设置;若该值大于等于匹配数4但是实际数据个数小于匹配数4，则按序获取实际数据进行匹配项设置，剩余匹配项设置为空；

	lr_save_string("$.store.books[*].author", "s_path_author");
	
	i = lr_json_get_values("JsonObject=s_json_obj",
                "ValueParam=s_old_author",
                "QueryString={s_path_author}",
	            "SelectAll=Yes",
                 LAST);	
	
	i = lr_json_set_values("JsonObject=s_json_obj",
	                "ValueParam=s_author",
	                "QueryString={s_path_author}",
	                "SelectAll=Yes",
	                 LAST);	
		
	i = lr_json_get_values("JsonObject=s_json_obj",
                "ValueParam=s_new_author",
                "QueryString={s_path_author}",
	            "SelectAll=Yes",
                 LAST);	

		
	return 0;
}

 

 10、lr_json_replace

 

lr_json_replace_Func()
{
	int i = 0;
	
	// See File: store.json
	lr_eval_json("Buffer/File=D:\\LR TraningCourse\\Functions\\store.json", 
	                 "JsonObject=r_json_obj", LAST);


	/* Change "name": "Black Books" to "owner":"Mr Black".*/
	i = lr_json_replace("JsonObject=r_json_obj",
	                "Value=\"\owner\":\"Mr Black\"",
	                "QueryString=$.store.name",
	                 LAST);	
	if (i != 1)
		lr_error_message("lr_json_replace should return %d, but returns %d", 1, i);
	
	i = lr_json_get_values("JsonObject=r_json_obj",
                "ValueParam=s_new_storename",
                "QueryString=$.store.owner",
                 LAST);	
	
	lr_save_string("$.store.books[*].isbn", "r_path_isbn");
	
	/*"discount": "20 percent"替换"isbn": "0-553-21311-3"和"isbn": "0-395-19395-8"*/
	i = lr_json_replace("JsonObject=r_json_obj",
	                "Value=\"discount\":\"20 percent\"",
	                "QueryString={r_path_isbn}",
	                "SelectAll=Yes",
	                 LAST);	
	if (i != 2)
		lr_error_message("lr_json_replace should return %d, but returns %d", 2, i);
	
	i = lr_json_get_values("JsonObject=r_json_obj",
                "ValueParam=r_discount",
                "QueryString=$.store.books[*].discount",
	            "SelectAll=Yes",
                 LAST);	
	
	
	return 0;
}

 

11、lr_json_insert

 

lr_json_insert_Func()
{
	int i = 0;
	
	// See File: store.json
	lr_eval_json("Buffer/File=D:\\LR TraningCourse\\Functions\\store.json", 
	             "JsonObject=i_json_obj", LAST);
	// 1 match
	i = lr_json_insert("JsonObject=i_json_obj",
	                "Value={\"owner\":\"Mr Black\"}",
	                "QueryString=$.store",
	                 LAST);	
	if (i != 1)
		lr_error_message("lr_json_insert should return %d, but returns %d", 1, i);
	
	// 1 match with JsonNode
	lr_save_string("{\"isbn\": \"0-048-08048-9\"}", "i_new_isbn");
	
	lr_eval_json("Buffer={i_new_isbn}", 
	             "JsonObject=i_json_obj2", LAST);
	
	i = lr_json_insert("JsonObject=i_json_obj",
	                   "JsonNode=i_json_obj2",
	                   "QueryString=$.store.books[0]",
	                   LAST);
	if (i != 1)
		lr_error_message("lr_json_insert should return %d, but returns %d", 1, i);
	
	
	// 2 match with ValueParam and SelectAll=Yes
	lr_save_string("{\"discount\":\"20 percent\"}", "i_new_discount");
	
	i = lr_json_insert("JsonObject=i_json_obj",
	                   "ValueParam=i_new_discount",
	                   "QueryString=$.store.books[?(@.price > 10)]",
	                   "SelectAll=Yes",
	                   LAST);
	if (i != 2)
		lr_error_message("lr_json_insert should return %d, but returns %d", 1, i);
	
	// 1 match
	// Notice that both of  the new items are inserted into the target array
	i = lr_json_insert("JsonObject=i_json_obj",
	                "Value=[{\"title\":\"New Book I\"}, {\"title\": \"New Book II\"}]",
	                "QueryString=$.store.books",
	                 LAST);	
	if (i != 1)
		lr_error_message("lr_json_insert should return %d, but returns %d", 1, i);
	
	lr_json_stringify("JsonObject=i_json_obj",
	                  "OutputParam=i_result",
	                 LAST);
	
	return 0;
}

 

12、lr_json_find

lr_json_find_Func()
{
	int i = 0;
	
	// See File: store.json
	i = lr_eval_json("Buffer/File=D:\\LR TraningCourse\\Functions\\store.json", 
	                 "JsonObject=f_json_obj", LAST);
	
	lr_json_stringify("JsonObject=f_json_obj",
	                  "OutputParam=d_result",
	                 LAST);
	
	// Multi match with SelectAll=No
	i = lr_json_find("JsonObject=f_json_obj",
	                "Value=fiction",
	                "QueryString=$.store.books[*].category",
	                 LAST);	
	if (i != 1)
		lr_error_message("lr_json_find should return %d, but returns %d", 1, i);
	
	// Multi match with SelectAll=Yes
	i = lr_json_find("JsonObject=f_json_obj",
	                "Value=fiction",
	                "QueryString=$.store.books[*].category",
	                "SelectAll=Yes",
	                 LAST);	
	if (i != 3)
		lr_error_message("lr_json_find should return %d, but returns %d", 1, i);
	
	// Use RegExp
	
	lr_save_string("$..books[?(@.price>10)].author", "f_path_author");
	
	i = lr_json_find("JsonObject=f_json_obj",
                "Value=.*Tolkien",
                "QueryString={f_path_author}",
                "UseRegExp=Yes",
                 LAST);
	
	if (i != 1)
		lr_error_message("lr_json_find should return %d, but returns %d", 1, i);
	
	
	return 0;
}

 

 13、lr_json_delete

lr_json_delete_Func()
{
	int i = 0;
	
	// See File: store.json
	lr_eval_json("Buffer/File=D:\\LR TraningCourse\\Functions\\store.json", 
	                 "JsonObject=d_json_obj", LAST);
	
	lr_json_stringify("JsonObject=d_json_obj",
	                  "OutputParam=d_result",
	                 LAST);
	// 1 match
	i = lr_json_delete("JsonObject=d_json_obj",
	                "QueryString=$.store.name",
	                 LAST);
	lr_json_stringify("JsonObject=d_json_obj",
	                  "OutputParam=d_result",
	                 LAST);
	if (i != 1)
		lr_error_message("lr_json_delete should return %d, but returns %d", 1, i);
	
	lr_save_string("$.store.books[*].isbn", "d_path_isbn");
	
	// 2 matches
	i = lr_json_delete("JsonObject=d_json_obj",
	                "QueryString={d_path_isbn}",
	                "SelectAll=Yes",
	                 LAST);
	if (i != 2)
		lr_error_message("lr_json_delete should return %d, but returns %d", 2, i);
	
	lr_json_stringify("JsonObject=d_json_obj",
	                  "OutputParam=d_result",
	                 LAST);
	
	return 0;
}

 

 13、lr_next_row

 

 

lr_next_row_Func()
{
	lr_message( "Connect to Stock Trader ID Number %s",lr_eval_string("{ID}") );
	lr_next_row("ID.dat");
	lr_message( "Connect to Stock Trader ID Number %s", lr_eval_string("{ID}") );
	lr_next_row("ID.dat");
	lr_message( "Connect to Stock Trader ID Number %s", lr_eval_string("{ID}") );	
	
	return 0;
}

 14、lr_read_file

读取txt文件：

lr_read_file_Func_textfile()
{
    int res;
    res = lr_read_file("D:\\LR TraningCourse\\Functions\\ParameterFunctions\\testfile\\test1.txt", "test1", 0);
    lr_message("res = %d\n data = %s\n", res, lr_eval_string("{test1}"));
    
	return 0;
}

 

 

 读取二进制文件：

lr_read_file_Func_binfile()
{
    char *raw_data = 0;
    unsigned long raw_data_len = 0;
    int res;

    res = lr_read_file("D:\\LR TraningCourse\\Functions\\ParameterFunctions\\testfile\\test2.dat", "test2", 0);
    lr_eval_string_ext("{test2}", 7, &raw_data, &raw_data_len, 0, 0, -1);
    lr_message("res = %d\n raw_data_len = %d\nraw_data = %s", res, raw_data_len, raw_data); 
	
	return 0;
}

 

 

 15、lr_param_sprintf

 

 

lr_param_sprintf_Func()
{
	int index = 56;
	char * suffix = "txt";
	
	lr_param_sprintf ("LOG_NAME_PARAM", "log_%d.%s", index, suffix,100);
	lr_output_message("The new file name is %s",lr_eval_string("{LOG_NAME_PARAM}"));
	
	return 0;
}

 16、lr_paramarr_len  & lr_paramarr_idx

 在机票示例程序中，web_submit_form调用返回的服务器信息中包含以下单选项：

<tr bgcolor="#EFF2F7"><td align="center"><input type="radio" name="outboundFlight" value="020;338;04/23/2021" checked="checked" >Blue Sky Air 020<td align="center">8am<td align="center">$ 338</TD></TR><tr bgcolor="#EFF2F7"><td align="center"><input type="radio" name="outboundFlight" value="021;301;04/23/2021">Blue Sky Air 021<td align="center">1pm<td align="center">$ 301</TD></TR><tr bgcolor="#EFF2F7"><td align="center"><input type="radio" name="outboundFlight" value="022;320;04/23/2021">Blue Sky Air 022<td align="center">5pm<td align="center">$ 320</TD></TR><tr bgcolor="#EFF2F7"><td align="center"><input type="radio" name="outboundFlight" value="023;277;04/23/2021">Blue Sky Air 023<td align="center">11pm<td align="center">$ 277</TD></TR></table>

为了预订航班，outboundFlight的value值是被需要的，因此需要使用web_reg_save_param来保存outboundFlight的value值。 
保存单个字符串示例： 
为了预订默认航班，含有“checked”的Value值，然后将它传给下一个web_submit_form，默认航班的HTML代码片段如下：

<input type="radio" name="outboundFlight" value="020;338;04/23/2021" checked="checked" >

保存所有匹配的值到数组outFlightVal，具体代码如下：

lr_paramarr_idx_and_lr_paramarr_len_Funcs()
{
	int arrSize;
	int ord;
	char * FlightVal;
/*Correlation comment - Do not change!  Original value='131151.632968813zHtzVVcpVcAiDDDDtAtHzpzHcHcf' Name ='userSession' Type ='ResponseBased'*/
	web_reg_save_param_ex(
		"ParamName=userSession",
		"LB=name=\"userSession\" value=\"",
		"RB=\"/>\n<table border",
		SEARCH_FILTERS,
		"Scope=Body",
		"IgnoreRedirections=No",
		"RequestUrl=*/nav.pl*",
		LAST);

	web_url("WebTours", 
		"URL=http://127.0.0.1:1080/WebTours/", 
		"Resource=0", 
		"RecContentType=text/html", 
		"Referer=", 
		"Snapshot=t32.inf", 
		"Mode=HTML", 
		LAST);


	web_submit_data("login.pl",
		"Action=http://127.0.0.1:1080/cgi-bin/login.pl",
		"Method=POST",
		"RecContentType=text/html",
		"Referer=http://127.0.0.1:1080/cgi-bin/nav.pl?in=home",
		"Snapshot=t33.inf",
		"Mode=HTML",
		ITEMDATA,
		"Name=userSession", "Value={userSession}", ENDITEM,
		"Name=username", "Value=jojo", ENDITEM,
		"Name=password", "Value=bean", ENDITEM,
		"Name=JSFormSubmit", "Value=on", ENDITEM,
		"Name=login.x", "Value=0", ENDITEM,
		"Name=login.y", "Value=0", ENDITEM,
		LAST);

	web_image("Search Flights Button", 
		"Alt=Search Flights Button", 
		"Snapshot=t34.inf", 
		LAST);

	lr_think_time(4);

/*Correlation comment - Do not change!  Original value='020;338;04/23/2021' Name ='outFlightVal' Type ='ResponseBased'*/
	//get all Flights info
	web_reg_save_param(
		"outFlightVal",
		"LB=name=\"outboundFlight\" value=\"",
		"RB=\"",
		"ORD=ALL",
		"SaveLen=18",
		LAST);

	web_submit_form("reservations.pl", 
		"Snapshot=t35.inf", 
		ITEMDATA, 
		"Name=depart", "Value=Denver", ENDITEM, 
		"Name=departDate", "Value=04/23/2021", ENDITEM, 
		"Name=arrive", "Value=London", ENDITEM, 
		"Name=returnDate", "Value=04/24/2021", 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=52", ENDITEM, 
		"Name=findFlights.y", "Value=10", ENDITEM, 
		LAST);

	arrSize = lr_paramarr_len("outFlightVal");//获取数组长度
	lr_message("paramarr length=%d",arrSize);
	
	FlightVal = lr_paramarr_idx("outFlightVal", arrSize);//获取索引为arrSize的值
	
// Submit a unique web request for each FlightVal in the Parameter array
    for (ord=1; ord <= arrSize; ++ord) {
        lr_save_string (lr_paramarr_idx("outFlightVal", ord), "flighVal");
    
        web_url("reservations.lookup",
            "URL=http://127.0.0.1:1080/cgi-bin/reservations.pl/lookup?resvKey={flighVal}", 
            "Resource=0", 
            "RecContentType=text/html", 
            "Referer=", 
            "Mode=HTML", 
            LAST);
	}
	
	return 0;
}

 17、lr_param_unique

lr_param_unique_Func()
{
	lr_param_unique ("OutParam");
	return 0;
}

 

 

 18、lr_param_increment

lr_param_increment_Func()
{
	int i = 0;
	lr_save_int(20, "modification_num");//保存整数到参数中
	i=lr_param_increment("next_modnum", "{modification_num}");
	lr_message("Return Vlues=%d",i);
	
	
	return 0;
}

 

 19、lr_zip  &   lr_unzip

lr_zip__lr_unzip_Funcs()
{
	int i=0;
	
	lr_save_string("This is the text I want to zip.", "param1");
	i=lr_zip("target=param2", "source=param1");
	lr_message("Return Vlues=%d",i);
	
	i=lr_zip("source=param1", "target=param3");
	lr_message("Return Vlues=%d",i);
	
	i=lr_unzip("source=param3", "target=param4");
	lr_message("Return Vlues=%d",i);
	
	return 0;
}

　　

 20、lr_unmask

 

 21、lr_checkpoint

 22、lr_convert_double_to_double

lr_convert_double_to_double_Func()
{
	lr_save_string("1.0502731456E7","sourceParam");
	lr_save_string("10062731.0","sourceParam2");
	
	lr_convert_double_to_double("sourceParam","%.2f","outparam");
	lr_output_message("[%s] converted to: [%s]",lr_eval_string("{sourceParam}"),lr_eval_string("{outparam}"));
	
	lr_convert_double_to_double("sourceParam","%.3f","outparam");
	lr_output_message("[%s] converted to: [%s]",lr_eval_string("{sourceParam}"),lr_eval_string("{outparam}"));
	
	lr_convert_double_to_double("sourceParam","%.0f","outparam");
	lr_output_message("[%s] converted to: [%s]",lr_eval_string("{sourceParam}"),lr_eval_string("{outparam}"));
	
	lr_convert_double_to_double("sourceParam2","%9.7E","outparam");
	lr_output_message("[%s] converted to: [%s]",lr_eval_string("{sourceParam2}"),lr_eval_string("{outparam}"));
	
	return 0;
}

　　

 

 23、lr_convert_double_to_integer

lr_convert_double_to_integer_Func()
{
	lr_save_string("1.0502731456E7","sourceParam");
	lr_save_string("10062731.0","sourceParam2");
	
	lr_convert_double_to_integer("sourceParam","outparam");
	lr_output_message("[%s] converted to: [%s]",	lr_eval_string("{sourceParam}"),lr_eval_string("{outparam}"));
	
	lr_convert_double_to_integer("sourceParam2","outparam");
	lr_output_message("[%s] converted to: [%s]",	lr_eval_string("{sourceParam2}"),lr_eval_string("{outparam}"));
	
	return 0;
}

 

 24、lr_convert_string_encoding

lr_convert_string_encoding_Func()
{
	int rc = 0;
	unsigned long converted_buffer_size_unicode = 0;
	char *converted_buffer_unicode = NULL;
	rc = lr_convert_string_encoding("Hello world", LR_ENC_SYSTEM_LOCALE, LR_ENC_UNICODE, "stringInUnicode");
	if(rc < 0) {
            // error
	}
	
	return 0;
}

　

 

妈呀，终于结束了，我要吐了...关于parameter functions部分内容就介绍到这里，部分函数示例待后续补充。。。

错误之处请欢迎指正~~

 

 

 

 

 

 

　　

 

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