LR Scripting user-defined C-language functions

LR Script Combat: User-defined C-language function LoadRunner can use standard C language functions, so we can write our own function in the script to call, the script structure, better reuse.  First look at an example: Action () {int i,j; j = 1; for (i=0;i<10;i++) {lr_message ("i+j=%d", Sum (i,j)); j + +; } return 0;} int sum (int a,int b)//simple Sum function {return a+b;} Example: I wrote a very simple function sum, 2 integers and 1, the function implementation can be placed anywhere in the LR script (scope of the function), such as action, Vuser_init, vuser_end the main functions of these scripts, you do not need to consider the scope of the function   ; can be called anywhere. If you put it in the function body of action (), Vuser_init (), Vuser_end (), only the body of this function can be called. For example: Action () {int a,int b)//simple Sum function {return a+b;} int i,j; j = 1; for (i=0;i<10;i++) {lr_message ("i+j=%d", s  Um (i,j)); j + +; } return 0;} In the example above, only the SUM function can be called inside the action. 2. If you want to jump out of a function, use return 0 or break to see an example of a slightly more complicated point: Action () {int aa[20]; Checkchar ("AaBbCc001 1 1", AA); Lr_message ("String length:%d", aa[0]); Lr_message ("Statistics-uppercase characters:%d", aa[1]); Lr_message ("Statistics-lowercase characters:%d", aa[2]); Lr_message ("Statistics-numeric characters:%d", aa[3]); Lr_message ("Statistics-space character:%d", aa[4]); return 0;}  void Checkchar (char ch[],int a[])//statistical functions, respectively, count the length of the string, the number of uppercase, lowercase, digits and spaces, return shaping is saved in the array {int i; for (i=0;i<=3;i++) a[i]=0; a[0] = strlen (CH);//Gets the string length for (i=0;i<a[0];i++) {if (ch[i]>= ' a ' && ch[i]<= ' Z ')//If it is an uppercase character a[1]++;  else if (ch[i]>= ' a ' && ch[i]<= ' z ')//if it is a lowercase character a[2]++;  else if (ch[i]>= ' 0 ' && ch[i]<= ' 9 ')//If it is a digital a[3]++; else if (ch[i]== ')//If it is a space a[4]++; }} wrote a function to check the string component, only the length of the string, uppercase, lowercase, number, and the number of spaces. Thus, the use of C functions in LR is more flexible.  Attach a pointer-related function call: Action () {int *i, *j;//*i = 100;  int a=50, b=50;  i = &a;  j = &b; Lr_message ("i+j=%d", Sum (i,j)); return 0;} int sum (int *a,int *b)//simple Sum function {return *a + *b;}

LR Scripting user-defined C-language functions