loadrunner字符串处理函数
| 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。 |
例子：
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 |
例子：
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. |
例子：
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。*****