strlen:獲取字符串的長度
char str[20]="容我想想";
int len;
len = strlen(str);
lr_output_message("str的長度=%d",len);
Action.c(9): str的長度=8
strupr:將小寫字母轉化爲大寫字母
char str[20] ="Welcome to the HP LoadRunner Online Function Reference";
char *str1 = NULL;
str1 = (char *)strupr(str);
lr_output_message("str的內容轉化爲大寫爲%s",str1);
strlwr:將小寫字母轉化爲大寫字母
char str[20] ="RONGWOXIANGXIANG";
char *str1 = NULL;
lr_output_message("str的內容轉化爲小寫爲%s",strlwr(str));
strrchr：在字符串中查找指定字符最後一次出現
char *str="Welcome to the HP LoadRunner Online Function Reference";
char *str1;
str1 = (char *)strrchr(str,'c');
lr_output_message("c 最後一次出現時在%s",str1);
strchr：在字符串中查找字符第一次出現
char *str="Welcome to the HP LoadRunner Online Function Reference";
char *str1;
str1 = (char *)strchr(str,'c');
lr_output_message("c第一次出現是在%s",str1);
strncpy：拷貝指定長度的字符串
char str[100]="容我想想老師之性能測試系列培訓課程";
char str1[100];
strncpy(str1,str,8);
lr_output_message("str的值爲%s",str1);
strcpy：拷貝字符串
char str[100]="容我想想老師之性能測試系列培訓課程";
char str1[100];
strcpy(str1,str);
lr_output_message("str的值爲%s",str1);
strnicmp：不區分大小寫比較指定長度的字符串
char str[100] ="Welcome to the HP LoadRunner Online Function Reference";
char str1[100]="WELCOME TO THE HP LOADRUNNER ONLINE FUNCTION REFERENCE";
int num;
num = strnicmp(str,str1,10);
if(num == 0)
lr_output_message("str == str1");
else if(num > 0)
lr_output_message("str > str1");
else if(num < 0)
lr_output_message("str < str1");
stricmp：不區分大小寫比較字符串
char str[100] ="Welcome to the HP LoadRunner Online Function Reference";
char str1[100]="WELCOME TO THE HP LOADRUNNER ONLINE FUNCTION REFERENCE";
int num;
num = stricmp(str,str1);
if(num == 0)
lr_output_message("str == str1");
else if(num > 0)
lr_output_message("str > str1");
else if(num < 0)
lr_output_message("str < str1");
strncmp:比較指定長度字符串
char str[100] = "Welcome to the HP LoadRunner Online Function Reference";
char str1[100]= "Welcome TO THE HP LOADRUNNER ONLINE FUNCTION REFERENCE";
int num;
num = strncmp(str,str1,8);
if(num == 0)
lr_output_message("str == str1");
else if(num > 0)
lr_output_message("str > str1");
else if(num < 0)
lr_output_message("str < str1");
strncmp:字符串比較
char str[100] = "Welcome to the HP LoadRunner Online Function Reference";
char str1[100]= "Welcome TO THE HP LOADRUNNER ONLINE FUNCTION REFERENCE";
int num;
num = strcmp(str,str1);
if(num == 0)
lr_output_message("str == str1");
else if(num > 0)
lr_output_message("str > str1");
else if(num < 0)
lr_output_message("str < str1");
strcat：拼接字符串
char str[100]="容我想想";
char str1[100]="老師之性能測試系列培訓課程";
char *str2;
str2 = (char *)strcat(str,str1);
lr_output_message("str1的值爲%s",str2);
strncat：拼接指定長度字符換
char str[100]="容我想想";
char str1[100]="老師之性能測試系列培訓課程";
char *str2;
str2 = (char *)strncat(str,str1,22);
lr_output_message("str1的值爲%s",str2);
memcpy：拷貝指定長度的字符串
char str[100]="容我想想老師之性能測試系列培訓課程";
char str1[100]="";
memcpy(str1,str,30);
lr_output_message("str1的值爲%s",str1);
memcmp：比較指定長度的字符串
char str[100]="容我想想老師之性能測試系列培訓課程TEST";
char str1[100]="容我想想老師之性能測試系列培訓課程";
int num;
num = memcmp(str1,str,34);
if(num == 0)
lr_output_message("str == str1");
else if(num > 0)
lr_output_message("str > str1");
else if(num < 0)
lr_output_message("str < str1");