char> hash; for (int i=0; i<s.length(); i++) { char c = s[i]; if (hash.find(c) != hash.end()) return c; else hash.insert(c); } return '\0'; } int main () { string str = "Hello Friends"; cout << "First repeating character is: " << getFirstRepeatingChar(str...
C++ program to find the last index of a character in a string #include<iostream>#include<string.h>usingnamespacestd;//function to get lastt index of a characterintgetLastIndex(char*s,charc){intlength;inti;//loop counter//get lengthlength=strlen(s);//run loop from length-1 to 0for(...
cout<< str.find('a',0) << endl;//1cout << str.find_first_of('a',0) << endl;//1 str.find_first_of('a', 0)与str.find('a', 0)//测试size_type find_first_of (const basic_string& str, size_type pos = 0) const noexcept;stringstr1("bcgjhikl");stringstr2("kghlj"); ...
#include <string> #include <algorithm> #include <iterator> intmain() { std::stringstr="A,B,C"; charch=','; autoit=std::find(str.rbegin(),str.rend(),ch); std::cout<<std::distance(str.begin(),(it+1).base())<<std::endl;// 3 ...
find /home -anewer tmp.txt 在/home下查存取时间比tmp.txt近的文件或目录 find /home -used -2 列出文件或目录被改动过之后,在2日内被存取过的文件或目录 find /home -user cnscn 列出/home目录内属于用户cnscn的文件或目录 find /home -uid +501 列出/home目录内用户的识别码大于501的文件或目录 ...
find("2", n); (gdb) s std::string::find (this=0xffffd300, __s=0x80499d8 "2", __pos=4294967295) at /usr/include/c++/4.8.2/bits/basic_string.h:1864 1864 return this->find(__s, __pos, traits_type::length(__s)); (gdb) s std::char_traits::length (__s=0x80499d8 "...
find函数在C++的头文件basic_string.h中有四种定义,定义如下: 2.1)第一个定义:size_type find(const _CharT* __s, size_type __pos, size_type __n) const; /** * @brief Find position of a C substring. * @param __s C string to locate. ...
int returnValue = -1; // Ensure that a search string has been specified and a valid start point. if (text.Length > 0) { // Obtain the location of the first character found in the control // that matches any of the characters in the char array. int indexToText = richTextBox1.Fin...
void test01() { //char*类型字符串 赋值给当前的字符串 string str1; str1 = "hello world"; //把字符串s赋给当前的字符串 string str2(str1); //单个字符给字符串赋值 string str3; str3 = 'a'; //把字符串s赋给当前字符串 string str4; str4.assign("hello C++"); //把字符串s的前n...
string::find( char c, size_type pos = 0 ) returns the index of the first occurrence of c in the string beginning at index pos. string::substr( size_type pos = 0, size_type n = npos ) returns the substring of n characters beginning from, and including, the character at index 'pos...