QString,char,string之間賦值

1)QString賦值給char *

    QString q_str;

    char *str = q_str.toLatin1().data();

2)char [] 賦值給string

    char str[20];

    string str1(str);

3)char *賦值給QString

    char *str;

    QString q_str;

    q_str += str;