string s = ”cdeabcigld“; s.find(sub) , s.rfind(sub) 这两个函数,如果完全匹配,才返回匹配的索引,即:当s中含有abc三个连续的字母时,才返回当前索引。 s.find_first_of(sub), s.find_first_not_of(sub), s.find_last_of(sub), s.find_last_not_of(sub) 这四个函数,查找s中含有sub中任意...
cout <<"the position of the first 'one' is "<< k1 << endl;intk2 = str1.find("one of", k1 +1,3); cout <<"the position of the second 'one' is "<< k2 << endl;intk3 = str1.find_first_of("aeiou");while(k3 != string::npos){ str1[3] ='*'; k3 = str1.find_f...
以find_first_of函数为例说明他们的参数,其他函数和 其参数一样,也就是说总共有24个函数: size_typefind_first_of(constbasic_string&s,size_typepos =0) size_typefind_first_of(constcharT*s,size_typepos, size_typen) size_typefind_first_of(constcharT*s,size_typepos=0) size_typefind_first_of...
// basic_string_find_first_of.cpp // compile with: /EHsc #include <string> #include <iostream> int main( ) { using namespace std; // The first member function // searches for a single character in a string string str1 ( "abcd-1234-abcd-1234" ); cout << "The original string st...
在适配最低版本iOS6升级iOS7的时候遇到了这个问题:"std::string::find_first_of(char, unsigned long) const", re...
// basic_string_find_first_of.cpp // compile with: /EHsc #include <string> #include <iostream> int main( ) { using namespace std; // The first member function // searches for a single character in a string string str1 ( "abcd-1234-abcd-1234" ); cout << "The original string st...
_Count从以_Off开始查找第_Count次出现的不属于_Ptr中的字符索引数.例如:str = "444-555-GGG"str.find_first_not_of ( "45G", 0 );返回第一个"-"的索引值3.str.find_first_not_of ( "45G", 0, 2 );返回第二个"-"的...结果一 题目 c++中string 的find_first_not_of size_type find_first...
The following example uses theStrPosfunction to determine the first position of thelcharacter in theMyLongStringvariable. al-language var MyLongString: Text[50]; begin MyLongString := 'HelloWorldOfManyManyCharacters'; Message('%1', StrPos(MyLongString, 'l')); // Results in 3 end; ...
二:手动实现find_first_of()函数 // 在字符串中查找第一个与str中的字符都不匹配的字符。返回它的位置。 1. //搜索从index開始。假设没找到就返回string::nops O(N^2) int MyString::find_first_not_of(const char *str,size_t index) { if(NULL == str || index >=strLength) return npos; si...
This code example produces the following results: Find the first occurrence of a character using different values of StringComparison. The current culture is "en-US" - English (United States). Search for the string "Å" in the string "A Cheshire ca°t" Part 1: Start index and count are...