globas.h中定义  //LoadRunner中没有直接的函数支持查找并替换字符串，因此可以封装一个lr_replace函数出来：// ----------------------------------------------------------------------------
char *strReplace(const char *src, const char *from, const char *to)
{char *value;char *dst;char *match;int size;int fromlen;int tolen;size = strlen(src) + 1;fromlen = strlen(from);tolen = strlen(to);value = (char *)malloc(size);dst = value;if ( value != NULL ){for ( ;; ){match = (char *) strstr(src, from);if ( match != NULL ){size_t count = match - src;char *temp;size += tolen - fromlen;temp = (char *)realloc(value, size);if ( temp == NULL ){free(value);return NULL;}dst = temp + (dst - value);value = temp;memmove(dst, src, count);src += count;dst += count;memmove(dst, to, tolen);src += fromlen;dst += tolen;}else{strcpy(dst, src);break;}} }return value;
}// ----------------------------------------------------------------------------// ----------------------------------------------------------------------------
int lr_replace( const char *lrparam, char *findstr, char *replacestr )
{int res = 0;char *result_str;char lrp[1024];sprintf( lrp, "{%s}", lrparam);result_str = strReplace( lr_eval_string(lrp), findstr, replacestr );if (result_str != NULL ){lr_save_string( result_str, lrparam );free( result_str );res = 1;}return res;
}

login()
{lr_save_string("This is a string", "MyPar");//web_convert_param( "MyPar",//                   "SourceEncoding=PLAIN",
//                   "TargetEncoding=URL", LAST); lr_output_message("%s", lr_eval_string("{MyPar}"));//lr_replace("MyPar", "+", "%20" );//lr_output_message("%s", lr_eval_string("{MyPar}"));lr_replace("MyPar", "ing", "旺仔" );   //将Mypar中的ing字符串用旺仔替换lr_output_message("%s", lr_eval_string("{MyPar}"));