C/C++char[] 转换为 intC/C++, 字符串，比如 char* ch 123 转化为整形 int int char_to_int(char * ch){
C/C++ char[] 转换为 int
C/C++, 字符串，比如 char* ch ="123" 转化为整形 int
int char_to_int(char * ch){char c;int result =0;while(c = *ch++){result *= 10; result += (int)(c-'0');}return result;}