c# 怎么转换c++的类型啊??

Question

SGIPAPI_API int SGIP_Submit(int conn_id,
char *sp_dial_num, 
char *ICPID，
char *service_id,
char fee_type,
char *fee_value,
char *give_value,
char agent_flag,
char mt_flag,
unsigned char priority,
char *valid_time,
char *at_time,
unsigned char report_flag,
unsigned char tp_pid,
unsigned char tp_udhi,
unsigned char msg_type,
unsigned char msg_format,
  char *charge_mobile,
  unsigned char user_num,
char *dest_mobiles,
char *msg,
unsigned long  msg_len,
unsigned long *p_seq1,
unsigned long *p_seq2,
unsigned long *p_seq3);上面c++代码下面我自己写的C#代码

Answer 1

char *可转换为ref string 或者char[]
unsigned char转成char
unsigned long *转 ref long