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為什么我改成Month month3("Jan"); 也不行？

C++

狐的傳說(shuō) 2023-03-18 14:10:24

char three_let[13][4]={"emp","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};class Month{private:int month;bool check();public:Month(char x[3]); //別的函數(shù)我就不寫(xiě)了}Month::Month(char x[3]){int i;for (i=1; i<14; i++) {if ((strcmp(three_let[i], x)==0)) {month=i;break;}}}int main(){Month month3({'J','a','n'});這里總是報(bào)錯(cuò) 說(shuō)no matching constructor for initialization of 'Month'我改成Month month3("Jan"); 也不行說(shuō)ISO C++11 does not allow conversion from string literal to 'char'

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2 回答

幕布斯6054654

TA貢獻(xiàn)1876條經(jīng)驗(yàn) 獲得超7個(gè)贊

參數(shù)不對(duì)，“Jan”是個(gè)string類型，而你的類里參數(shù)類型是指針類型，你可以先char *ch="Jan";然后調(diào)用構(gòu)造函數(shù)，Month month3(ch);

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慕標(biāo)琳琳

TA貢獻(xiàn)1830條經(jīng)驗(yàn) 獲得超9個(gè)贊

這里總是報(bào)錯(cuò) 說(shuō)no matching constructor for initialization of 'Month'

是說(shuō)你沒(méi)有構(gòu)造函數(shù)。
SO C++11 does not allow conversion from string literal to 'char'

是說(shuō)不允許從string 到char

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