MQL4>MQL5:字符串函数

string StringConcatenate(...)

int StringConcatenate(string &string_var,
                      void argument1
                      void argument2
                      ...)

int StringFind(string text,
               string matched_text,
               int start=0)

int StringFind(string string_value,
               string match_substring,
               int start_pos=0)

int StringGetChar(string text,
                  int pos)

ushort StringGetCharacter(string string_value,
                          int pos)

int StringLen(string text)

int StringLen(string string_value)

string StringSetChar(string text,
                     int pos,
                     int value)

bool StringSetCharacter(string &string_var,
                        int pos,
                        ushort character)

string StringSubstr(string text,
                    int start,
                    int length=0)

string StringSubstr(string string_value,
                    int start_pos,
                    int length=-1)

string StringTrimLeft(string text)

int StringTrimLeft(string& string_var)

string StringTrimRight(string text)

int StringTrimRight(string& string_var)