Evaluate the length of the string and return the result (17th weeks on-board task)

[Cpp]/** Copyright (c) 2012, School of Computer Science, Yantai University * All rights reserved. * file name: test. cpp * Author: Fan Lulu * Completion Date: July 15, December 18, 2012 * version: v1.0 ** input Description: none * Problem description: Evaluate the string length with the pointer and return * program output: string Length * Problem Analysis: * Algorithm Design: omitted */# include <iostream> using namespace std; int pstrlen (char * str); int main () {int num; char Str [500]; cout <"Enter the string:"; gets (Str); num = pstrlen (Str); cout <"the string length is: "<num <endl; return 0;} int pstrlen (char * str) {int I = 0, t = 0; while (str [I]! = '\ 0') {t ++; I ++;} return I ;}