注意:参数必须在双引号中才能用
将字符串保存为参数
lr_save_string("string you want to save", "arg_name");
举例:用参数来替换需要打开的url链接
Action2()
{
lr_save_string("http://172.25.75.2:1080/WebTours/", "web_site");
//打开登录页面
web_url("WebTours",
"URL = {web_site}", //运行出错//改成"URL= {web_site}"即可
"Resource=0",
"RecContentType=text/html",
"Referer=",
"Snapshot=t1.inf",
"Mode=HTML",
LAST);
return 0;
}
运行报错:
Action2.c(6): Error -27226: The "URL = http://172.25.75.2:1080/WebTours/" argument (number 2) is unrecognized or misplaced [MsgId: MERR-27226]
Action2.c(6): web_url("WebTours") highest severity level was "ERROR", 0 body bytes, 0 header bytes [MsgId: MMSG-26388]
解决方法:
"URL = {web_site}",URL和等号”=”之间多出了一个空格,去掉该空格即可。
所以使用lr_eval_string()函数的时候也是使用双引号来调用的。
还可以如下方式
Action2()
{
lr_save_string("http://172.25.75.2:1080/", "web_site");
lr_save_string("WebTours/", "web_name");
//打开登录页面
web_url("WebTours",
"URL={web_site}{web_name}",
"Resource=0",
"RecContentType=text/html",
"Referer=",
"Snapshot=t1.inf",
"Mode=HTML",
LAST);
return 0;
}
获取参数值的字符串表识
可用lr_eval_string函数获取参数值的字符串标表示,然后用lr_output_message()函数输出结果
Action2()
{
lr_save_string("http://172.25.75.2:1080/", "web_site");
lr_save_string("WebTours/", "web_name");
lr_output_message(lr_eval_string("获取参数值的字符串表示:{web_site}{web_name}"));
//打开登录页面
web_url("WebTours",
"URL= {web_site}{web_name}",
"Resource=0",
"RecContentType=text/html",
"Referer=",
"Snapshot=t1.inf",
"Mode=HTML",
LAST);
return 0;
}
注:如果想获取参数字符串的第一个字母,同c,可以这样:lr_eval_string(“{param}”)[0];
将int型数字保存为参数
lr_save_int(int_number, “param_name”)
例如:
Action2()
{
lr_save_int(0, "int_param");
//打开登录页面
web_url("WebTours",
"URL=http://172.25.75.2:1080/WebTours/",
// "Resource=0",
"Resource={int_parma}",
"RecContentType=text/html",
"Referer=",
"Snapshot=t1.inf",
"Mode=HTML",
LAST);
return 0;
}
把时间保存为参数
通过lr_save_datetime函数来实现。
函数原型:
void lr_save_datetime(const char *format, int offset, const char *name);
format:期望输出的日期格式,如:%Y、%m、%d、%X等
offset:类似与表示时间的一些关键字常量:
DATE_NOW -> 现在的日期
TIME_NOW -> 现在的时间
ONE_DAY -> 一天的时间
ONE_HOUR -> 一小时的时间
ONE_MIN -> 一分钟的时间
需要注意的是,他们可以单独使用,也可以联合使用
DATE_NOW + TIME_NOW -> 当前时间
DATE_NOW-ONE_DAY -> 昨天
DATE_NOW+ONE_DAY -> 明天
两天前的日期
DATE_NOW-2*(ONE_DAY)、 DATE_NOW-2*24*(ONE_HOUR)、 DATE_NOW-2*24*60*(ONE_MIN)
2个小时后的时间
TIME_NOW+2*(ONE_HOUR)
TIME_NOW+2*60*(ONE_MIN)
name:期望将时间保存到的那个参数的名称
format格式参照表:
Code |
Description |
%a |
day of week, using locale's abbreviated weekday names |
%A |
day of week, using locale's full weekday names |
%b |
month, using locale's abbreviated month names |
%B |
month, using locale's full month names |
%c |
date and time as %x %X |
%d |
day of month (01-31) |
%H |
hour (00-23) |
%I |
hour (00-12) |
%j |
number of day in year (001-366) |
%m |
month number (01-12) |
%M |
minute (00-59) |
%p |
locale's equivalent of AM or PM, whichever is appropriate |
%S |
seconds (00-59) |
%U |
week number of year (01-52), Sunday is the first day of the week. Week number 01 is the first week with four or more January days in it. |
%w |
day of week; Sunday is day 0 |
%W |
week number of year (01-52), Monday is the first day of the week. Week number 01 is the first week with four or more January days in it. |
%x |
date, using locale's date format |
%X |
time, using locale's time format |
%y |
year within century (00-99) |
%Y |
year, including century (for example, 1988) |
%Z |
time zone abbreviation |
%% |
to include the "%" character in your output string |
举例:
Action()
{
lr_save_datetime("%X",TIME_NOW,"time");
lr_save_datetime("%Y-%m-%d",DATE_NOW,"date");
lr_save_datetime("%Y-%m-%d %X",DATE_NOW+TIME_NOW,"datetime");
lr_save_datetime("%Y-%m-%d",DATE_NOW-ONE_DAY,"yesterday");
lr_output_message(lr_eval_string("系统的当前时间为:{time}"));
lr_output_message(lr_eval_string("系统的当前日期为:{date}"));
lr_output_message(lr_eval_string("系统的当前日期,当前时间:{datetime}"));
lr_output_message(lr_eval_string("昨天的日期为:{yesterday}"));
return 0;
}
运行结果:
Starting iteration 1.
Starting action Action.
Action.c(7): 系统的当前时间为:12:27:54
Action.c(8): 系统的当前日期为:2014-10-22
Action.c(9): 系统的当前日期,当前时间:2014-10-22 12:27:54
Action.c(10): 昨天的日期为:2014-10-21
Ending action Action.
Ending iteration 1.
把内容保存为带格式的参数
lr_param_sprintf(param_name,format,var1,var2,…);
示例:
Action2()
{
int index = 56;
char *suffix = "txt";
lr_param_sprintf("NewParam","log_%d.%s",index,suffix);
lr_output_message("The new file name is %s",lr_eval_string("{NewParam}"));
return 0;
}
运行结果:
Starting action Action2.
Action2.c(24): The new file name is log_56.txt
Ending action Action2.
把内容保存到参数数组
这个概念lr9.x后才有
参数数组必须满足以下两个条件:
1.参数必须都是以相同的名字开头,后面接下划线加数字的方式顺序赋值。
2.参数数组必须有一个“参数名_count”的参数来记录数组的长度
相关函数:
lr_paramarr_idx()
//获取参数数组中指定编号的参数的值
lr_paramarr_len()
//获取参数数组的长度
lr_paramarr_random()
//从参数列表中随机获取一个参数
例子:要创建一个访问网站的参数数组,可以编写以下代码
脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" title="loadrunner 脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" border="0">
说明:通过脚本创建了一个名为website的参数数组,并获取编号为2的参数的值,
运行结果:
脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" title="loadrunner 脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" border="0">
此处:web_site
= lr_paramarr_idx("website", 2),等同:lr_eval_string(“{website_2}”);
获取参数数组长度
例子:
Action2()
{
int
array_size = 0;
char
*arr_size_str = NULL;
lr_save_string("www.google.com", "website_1");
lr_save_string("www.google.com", "website_2");
lr_save_string("www.google.com", "website_3");
lr_save_string("www.google.com", "website_4");
lr_save_string("4", "website_count");
array_size = lr_paramarr_len("website");
//输出整数
//1.把结果array_size保存为参数
lr_save_int(array_size, "arr_size");
//2.获取参数的字符串表示
arr_size_str = lr_eval_string("{arr_size}");
//输出结果
lr_output_message(arr_size_str);
return 0;
}
运行结果:
脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" title="loadrunner 脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" border="0">
从参数列表中随机获取一个参数
例子:
Action2()
{
char
*web_site = NULL;
lr_save_string("www.google.com", "website_1");
lr_save_string("www.google.com", "website_2");
lr_save_string("www.google.com", "website_3");
lr_save_string("www.google.com", "website_4");
lr_save_string("4", "website_count");
web_site = lr_paramarr_idx("website", 2);
return 0;
}
运行结果:
脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" title="loadrunner 脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" border="0">
例子:按顺序输出每个参数
Action2()
{
int i
= 0;
lr_save_string("www.google.com", "website_1");
lr_save_string("www.google.com", "website_2");
lr_save_string("www.google.com", "website_3");
lr_save_string("www.google.com", "website_4");
lr_save_string("4", "website_count");
for (i=0; i
{
lr_output_message(lr_paramarr_idx("website", i));
}
return 0;
}
输出结果
脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" title="loadrunner 脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" border="0">
用指针变量存放参数
Action2()
{
char
*pt = NULL;
lr_save_string("hello world", "param");
pt =
"{param}";
lr_output_message(pt);
lr_output_message(lr_eval_string(pt));
return 0;
}
运行结果:
脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" title="loadrunner 脚本开发-参数化之将内容保存为参数、参数数组及参数值获取" border="0">