优化以下代码使其拥有友好的程序界面：#include stdioh#include stdlibh#include stringh run this program using the console pauser or add your own getch systempause or input loop typedef struct node char dstNet5;

#include <stdio.h> #include <stdlib.h> #include <string.h>

#define MAX_SIZE 1000

typedef struct node{ char dstNet[5]; int distance; char nextSkip[5]; }RTable;

RTable RT1[MAX_SIZE]; RTable RT2[MAX_SIZE]; int l1 = 0, l2 = 0;
char nearR1[5], nearR2[5];

void InitRTable(RTable* RT) { printf("请为当前路由器添加路由表项(目的网络 距离 下一跳路由器)：\n"); for(int i = 0; i < MAX_SIZE; ++i) { scanf("%s%d%s", RT[i].dstNet, &RT[i].distance, RT[i].nextSkip);
if(RT[i].distance == 0) {
break;
}
}
l1 = MAX_SIZE - i - 1; }

void AddNearRouter() {
printf("\n输入相邻路由器名称：\n");
scanf("%s", nearR1);
}

void InitNearRTable() {
printf("\n请为相邻路由器%s添加路由表项(目的网络 距离 下一跳路由器)：\n", nearR1);
for(int i = 0; i < MAX_SIZE; ++i) {
scanf("%s%d%s", RT2[i].dstNet, &RT2[i].distance, RT2[i].nextSkip);
if(RT2[i].distance == 0) {
break;
}
}
l2 = MAX_SIZE - i - 1; }

void UpdateNearRTable(RTable* RT2, char* nearR) { for(int p = 0; p < l2; ++p) { RT2[p].distance = RT2[p].distance + 1; strcpy(RT2[p].nextSkip, nearR); } }

void UpdateRTable(RTable* RT1, RTable* RT2) {
for(int p = 0; p < l2; ++p) {
int finded = 0;
for(int q = 0; q < l1; ++q) {
if(strcmp(RT2[p].dstNet, RT1[q].dstNet) == 0) {
finded = 1;
if(strcmp(RT1[q].nextSkip, RT2[q].nextSkip) == 0) {
RT1[q].distance = RT2[p].distance;
} else { if(RT2[p].distance + 1 < RT1[q].distance) {
RT1[q].distance = RT2[p].distance;
strcpy(RT1[q].nextSkip, RT2[q].nextSkip);
}
}
}
}
if(!finded) { strcpy(RT1[l1].dstNet, RT2[p].dstNet);
RT1[l1].distance = RT2[p].distance;
strcpy(RT1[l1].nextSkip, RT2[p].nextSkip); ++l1;
}
}
}

void PrintRTableHeader(char* title) { printf("\n--%s--\n", title); printf(" 目的网络 距离 下一跳路由器\n");
}

void PrintRTable(RTable* RT, int len) {
for(int i = 0; i < len; ++i) {
printf(" %s %d %s\n", RT[i].dstNet, RT[i].distance, RT[i].nextSkip);
}
printf("--\n");
}

void PrintUpdate() { UpdateRTable(RT1, RT2);
printf("\n--当前路由器更新后的路由表----\n");
PrintRTable(RT1, l1);
}

int main() { printf("\n-------距离向量算法的过程模拟--------\n\n");
InitRTable(RT1);
while(1) {
printf("\n--是否有新的路由信息（0为否，1为是）--\n\n"); int choose;
scanf("%d", &choose);
if(choose == 1) { AddNearRouter();
InitNearRTable();
PrintRTableHeader("当前路由器的路由表"); PrintRTable(RT1, l1);
PrintRTableHeader("相邻路由器的路由表"); PrintRTable(RT2, l2);
printf("\n--修改后的路由信息--\n"); UpdateNearRTable(RT2, nearR1); PrintRTable(RT2, l2); PrintUpdate();
} else if(choose == 0) { break; }
} printf("\n----更新完毕----\n\n"); return 0;