用C语言写了一个用来背单词的系统，需要自己先把要背的单词利用记事本写入创建的文件中，然后打开此代码串，运行该代码进行单词的背写。

把源码站在下面

#include <string.h>
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#define CODE 0x3b
#define MAXLEN 100

typedef struct
{
	char *english;
	char *chinese;
}Word;

Word word[MAXLEN];
int testType = 0;

int init()
{
	FILE *fp;
	char fname[50];
	char line[MAXLEN];
	char *p;
	char *word1;
	char *word2;
	int i=0;
	int j;
	int len;
	printf("\t欢迎使用英语单词标准化测!\n");
	printf("=============================================\n");
	printf("请输入测试用的单词的库文件名：");
	scanf("%s",fname);
	if((fp = fopen(fname,"rb")) ==NULL)
	{
		printf("不能打开单词库文件%s,请检查！",fname);
		exit(0);
	}
	fflush(stdin);
	while(fgets(line,MAXLEN,fp))
	{
		for(j=0;j<strlen(line);j++)
		{
			if(line[j]!='\n')
			{
				line[j] = line[j]^CODE;
			}
		}
		p = strchr(line,'\n');
		if(p!=NULL)
		{
			*p ='\0';
		}
		p=strchr(line,'=');
		word1 =line;
		word2 =p;
		*p='\0';
		++word2;
		len=strlen(word1);
		word[i].english = (char *)malloc(len+1);
		strcpy(word[i].english,word1);
		len = strlen(word2);
		word[i].chinese = (char *)malloc(len+1);
		strcpy(word[i].chinese,word2);
		i++;
	}
	fclose(fp);
	return 1; 
}

void endtest(int size)
{
	int i;
	for(i=0;i<size;i++)
	{
		free(word[i].english);
		word[i].english=NULL;
		free(word[i].chinese);
		word[i].chinese = NULL;
	}
}

void test(int size)
{
	int i,j,t;
	int flag;
	char choice;
	int xm[4];
	int count = 0;
	int score = 0;
	printf("请选择测试类型（1-中文找英文 0-英文找中文）：");
	scanf("%d",&testType);
	fflush(stdin);
	for(i=0;i<size;i++)
	{
		system("cls");
		if(!testType)
		{
			printf("%d.英文%s的中文含义是：\n",i+1,word[i].chinese);
		}
		else 
		{
			printf("%d.中文%s的英文含义是：\n",i+1,word[i].chinese); 
		}
		srand(time(NULL));
		count= 0;
		while (count<=4)
		{
			t = rand()%size;
			if(t==1)
			{
				continue;
			}
			flag = 0;
			for(j =0;j<count;j++)
			{
				if(xm[j]==t)
				{
					flag=1;
				}
			}
			if(!flag)
			{
				xm[count] = t;
				count++;
			}
		}
		t =rand()%4;
		xm[t]=i;
		if(!testType)
		{
			printf("\tA. %s\n",word[xm[0]].chinese);
			printf("\tB. %s\n",word[xm[1]].chinese);
			printf("\tC. %s\n",word[xm[2]].chinese);
			printf("\tD. %s\n",word[xm[3]].chinese);
		}
		else
		{
			printf("\tA. %s\n",word[xm[0]].english);
			printf("\tB. %s\n",word[xm[1]].english);
			printf("\tC. %s\n",word[xm[2]].english);
			printf("\tD. %s\n",word[xm[3]].english);
		}
		printf("请输入你的选择：");
		choice = getchar();
		fflush(stdin);
		if(choice>='a'&&choice<='z');
		{
			choice = choice-'a'+'A';
			if(choice-'A'==t)
			{
				printf("恭喜你答对了！\n");
				score++;
			}
			else 
			{
				printf("抱歉你答错啦！");
				printf("正确答案是%c。\n",'A'+t); 
			}
		}
		getchar();
	}
	printf("本次测试结束，您共测试了%d道题，答对了%d道！\n\n欢迎下次继续使用！\n",size,score);
	endtest(size);
}

int main(int argc, char *argv[])
{
	int size = init();
	test(size);
	getchar();
	return 0;
}