python3利用ctypes传入一个字符串类型的列表

c语言里：c_p.c

#include <stdio.h>

void get_str_list(int n, char *b[2])
{
printf("in c start");
for(int i=0;i<n;i++)
    {
printf("%s", *(b+i));
printf("\n");
    }
printf("in c end");
}

编译为动态库的命令：

gcc -o hello1.so -shared -fPIC c_p.c

python里：p_c.py

from ctypes import *
ll = cdll.LoadLibrary
lib = ll("./12_23_ctype_list/hello1.so")
n = 3
str1 = c_char_p(bytes("nihao", 'utf-8'))
str2 = c_char_p(bytes("shijie", 'utf-8'))

a = (c_char_p*2)(str1, str2)
lib.get_str_list(2, a)

输出

in c startnihao
shijie
in c end