loadrunner字符串处理函数
2011-10-26 17:42
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在Loadrunner中提供了C对字符串出了的相关功能函数,如下:
下面我们将对这些函数作一一说明,并举例实践。
void lr_save_datetime(const char *format, int offset,
const char *name);
参数解释:
例子:
运行结果为:
Running Vuser...
Starting iteration 1.
Starting action Action.
Action.c(5): Tomorrow is 七月 06 2011
Ending action Action.
Ending iteration 1.
Ending Vuser...
int lr_save_int ( int value, const char *param_name);
参数解释:
例子:
运行结果为:
Running Vuser...
Starting iteration 1.
Starting action Action.
Action.c(6): 10
Ending action Action.
Ending iteration 1.
Ending Vuser...
int lr_save_searched_string (const char *buffer, long
buf_size, unsigned int occurrence, const char *search_string, int
offset, unsigned int string_len, const char *parm_name );
参数解释:
例子:
运行结果为:
Running Vuser...
Starting iteration 1.
Starting action Action.
Action.c(9): Fannys_brother=Will
Ending action Action.
Ending iteration 1.
Ending Vuser...
int lr_save_string (const char *param_value, const char *param_name);
int lr_save_var (const char *param_value, unsigned long const
value_len, unsigned long const options, const char *param_name);
char *lr_eval_string (const char *instring
);
以上三个函数我们经常会用在一起。例如:
例子:
Starting iteration 1.
Starting action Action.
Action.c(5): 8
Action.c(6): 7
Action.c(9): ShortName=testaaa
Action.c(10): ShortName=testaaa
Ending action Action.
Ending iteration 1.
*****注:在loadrunner中,字符串处理函数用的比较多,其用法也比较简单。多加以练习操作,在项目实践中可以很快的做到得心应手。*****
lr_save_datetime | 把当前日期和时间保存到一个参数中 |
lr_save_int | 把一个整数保存为参数 |
lr_save_searched_string | 保存一个字符数组相对于字符串出现的部分。 |
lr_save_string | 把一个字符串保存到参数中 |
lr_save_var | 把字符串的一部分内容保存为参数 |
lr_eval_string | 返回参数的实际内容或返回一个包含参数的字符串的实际内容 |
void lr_save_datetime(const char *format, int offset,
const char *name);
参数解释:
format | 所检索的日期/时间信息的格式 |
offset | 当前日期和时间的偏移量, 采用形式有: DATE_NOW, TIME_NOW, ONE_DAY, ONE_HOUR, ONE_MIN. 例如: TIME_NOW + ONE_HOUR |
name | 保存的参数名称,用来存储日期/时间信息。 |
Action() { lr_save_datetime("Tomorrow is %B %d %Y", DATE_NOW + ONE_DAY, "next"); lr_output_message(lr_eval_string("{next}")); return 0; }
运行结果为:
Running Vuser...
Starting iteration 1.
Starting action Action.
Action.c(5): Tomorrow is 七月 06 2011
Ending action Action.
Ending iteration 1.
Ending Vuser...
int lr_save_int ( int value, const char *param_name);
参数解释:
value | 将要保存到参数得整数值 |
param_name | 保存的参数名称 |
Action() { int num; num = 5; lr_save_int(num * 2, "param1"); lr_output_message(lr_eval_string("{param1}")); return 0; }
运行结果为:
Running Vuser...
Starting iteration 1.
Starting action Action.
Action.c(6): 10
Ending action Action.
Ending iteration 1.
Ending Vuser...
int lr_save_searched_string (const char *buffer, long
buf_size, unsigned int occurrence, const char *search_string, int
offset, unsigned int string_len, const char *parm_name );
参数解释:
buffer | The STRING or CARRAY buffer, part of whose contents you want to save. |
buf_size | The buffer size. |
occurrence | The occurrence number of the search_string (0-based count). For example, if the search_string occurs three times, and you want the second occurrence, set occurrence to 1. |
search_string | The string to search for in the buffer. |
offset | The number of characters to skip after the end of the search string occurrence. |
string_len | The number of characters to save. |
parm_name | Parameter name to be used in subsequent lr statements to refer to the saved information. Name is enclosed in double-quotes. |
Action() { char cBuff[] = "abc Emma Woodhouse abc Elizabeth Bennet abc William Price"; lr_save_searched_string(cBuff, strlen(cBuff), 2, "abc", // Search for third occurrence of "abc" 1, // Skip the space after "abc" 4, // Put the next four characters... "Fannys_brother"); // ... in parameter Fannys_brother. lr_output_message("%s",lr_eval_string("Fannys_brother={Fannys_brother}")); return 0; }
运行结果为:
Running Vuser...
Starting iteration 1.
Starting action Action.
Action.c(9): Fannys_brother=Will
Ending action Action.
Ending iteration 1.
Ending Vuser...
int lr_save_string (const char *param_value, const char *param_name);
int lr_save_var (const char *param_value, unsigned long const
value_len, unsigned long const options, const char *param_name);
char *lr_eval_string (const char *instring
);
以上三个函数我们经常会用在一起。例如:
例子:
Action() { lr_save_string("testaaaab", "InName"); lr_output_message("%d",strlen("{InName}")); lr_output_message("%d",strlen("{InName}")-1); lr_save_var( lr_eval_string("{InName}"), strlen("{InName}")-1, 0, "ShortName"); lr_output_message("%s",lr_eval_string("ShortName={ShortName}")); lr_output_message("ShortName=%s",lr_eval_string("{ShortName}")); return 0; }
Starting iteration 1.
Starting action Action.
Action.c(5): 8
Action.c(6): 7
Action.c(9): ShortName=testaaa
Action.c(10): ShortName=testaaa
Ending action Action.
Ending iteration 1.
*****注:在loadrunner中,字符串处理函数用的比较多,其用法也比较简单。多加以练习操作,在项目实践中可以很快的做到得心应手。*****
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