將std :: string轉換爲char

Question

出錯了？

std::string _text = asLowerCaseString(text); 
for(uint8_t i = 0; i < _text.length(); i++) 
    { 
    char t = _text; 
    if(t != '-' && t != '.' && !(t >= 'a' && t <= 'z')) 
     { 
     _text.erase(i, 1); 
     i--; 
     } 
    } 

std::string words []= {".net","no-ip", ".net", ".com", ".com.br", ".org", ".pl", ".net"}; 
int ii, length; 
length = sizeof(words)/sizeof(words[0]); 
for(ii=0; ii < int(length); ii++) 
    { 
    if (int(_text.find(words[ii])) > 0 || _text == words[ii]) 
     { 
     return false; 
     break; 
     } 
    } 

行錯誤

char t = _text; 

錯誤

There is no conversion function "std :: string" a "char" suitable

我使用MSVC 2012

，此代碼linux下的編譯器，但沒有窗戶的罰款。

Answer 1

有沒有從字符串轉換成char

char t = _text; 

應

char t = _text[i];