C + + replace () functional usage detailed __jquery

In this paper, we mainly give the sample program for the use of Replace function in C + +

[CPP] view plain copy/* Usage One: * Replace the specified string with str the character *string& replace (size_t pos, size_t Len, from the starting position of POS)   Const string& STR);       * * int main () {string line = "this@ is@ a test string!"; line = Line.replace (Line.find ("@"), 1, "");          Replace the first @ for empty cout << line << Endl from the first @ position;   return 0; Run Results:

[CPP] view plain Copy/* Usage two: * Replaces the character *string& replace of the iterator starting and ending positions with str (const_iterator I1, Const_iter   Ator i2, const string& str);       * * int main () {string line = "this@ is@ a test string!";  line = Line.replace (Line.begin (), Line.begin () +6, "");          Replaces 6 characters cout << line << Endl with str starting from begin position;   return 0; Run Results:

[CPP] view plain copy/* Usage three: * Replace the string from the specified position with the substr specified substring (given starting position and length) *string& replace (size_t POS, size_t   Len, const string& STR, size_t subpos, size_t Sublen);       * * int main () {string line = "this@ is@ a test string!";       String substr = "12345"; line = Line.replace (0, 5, substr, Substr.find ("1"), 3);          Replaces line cout << line << Endl from 0 to 5 positions with the specified substring of the substr (from 1 digits of 3 characters);   return 0; Run Results:

[CPP]   View plain  copy/* Usage four: The compiler may report a warning when a string is char*, not recommended    * Replaces the string    *string& replace (size_t pos, size_t len, const) with STR starting at the specified position 0 start length of 5  char* s);   */   int main ()    {        string line =  "this@ is@ a test string!";        char* str =  "12345";        Line = line.replace (0,&NBSP;5,&NBSP;STR)  //use STR to replace a string with a length of 0 starting at the specified position of 5         cout << line << endl;