[a40136]

#include<stdio.h>
#include<string.h>
#include <iostream>
using namespace std;
char words[][2][40] = {
        "dog", "xiao gou",
        "car", "che zi",
        "gold", "jin zi",
        "child","hai zi",
        "wife","qi zi",
        "game","you xi",
        "house","fang zi",
        "rich","fa cai",
        "",""
};

int main(void)
{
        char english[80];
        int i;

        printf("enter english word: \n");
        gets(english);

        //look up the work

        i=0;
        //search while null string not yet encountered.

        while(strcmp(words[i][0],""))
        {
                if(!strcmp(english,words[i][0]))
                {
                        printf("chinese translation: %s", words[i][1]);
                        break;
                }
                i++;
        }
        if(!strcmp(words[i][0],"")) printf("not in dictionary.\n");
        return 0;
}

i++放錯位置了，你輸入car會去比對dog，但是不符合，所以不會進if statement
所以i永遠會是0，會造成while不會中止，所已過一段時間程式就crash了。