用cplusplus代码实现如下功能,局域网络的网络总线总带宽是320兆,局域网总有5个终端(A、B、C、D 、E),其中A终端占用160兆带宽,B终端占用80兆带宽,C终端占用40兆带宽,D终端占用20兆带宽,E终端占用10兆带宽,每个终端都是相互独立而且不定时地申请网络带宽资源,用完后释放,A、B有更高的优先级,可以抢占C、D、E的资源,C、D、E被抢占后只能退出带宽的使用,用代码模拟资源申请情况。
时间: 2023-02-28 20:58:31 浏览: 48
下面是用C++代码实现该功能的示例:
```
#include<iostream>
#include<cstdlib>
#include<ctime>
using namespace std;
const int totalBandwidth = 320; // 总带宽
const int A = 160; // A终端带宽
const int B = 80; // B终端带宽
const int C = 40; // C终端带宽
const int D = 20; // D终端带宽
const int E = 10; // E终端带宽
int availableBandwidth = totalBandwidth; // 当前可用带宽
bool requestBandwidth(int terminal, int bandwidth) {
if (bandwidth > availableBandwidth) {
return false;
}
if (terminal == 'A' || terminal == 'B') { // A、B终端有更高的优先级
availableBandwidth -= bandwidth;
cout << "终端" << char(terminal) << "申请带宽" << bandwidth << "成功" << endl;
cout << "当前可用带宽:" << availableBandwidth << endl;
return true;
} else if (terminal == 'C' || terminal == 'D' || terminal == 'E') {
if (availableBandwidth - bandwidth < A + B) {
cout << "终端" << char(terminal) << "申请带宽" << bandwidth << "失败" << endl;
cout << "当前可用带宽:" << availableBandwidth << endl;
return false;
}
availableBandwidth -= bandwidth;
cout << "终端" << char(terminal) << "申请带宽" << bandwidth << "成功" << endl;
cout << "当前可用带宽:" << availableBandwidth << endl;
return true;
}
return false;
}
void releaseBandwidth(int terminal, int bandwidth) {
availableBandwidth += bandwidth;
cout << "终端" << char(terminal) << "释放带宽" << bandwidth << endl;
cout << "当前可用带宽:" << availableBandwidth << endl;
}
int main() {
srand(time(0));
while (true) {
int terminal = 65 + rand() % 5; // 随机生成终端
int bandwidth = rand() % 21 + 10; // 随机生成带宽
if (requestBandwidth(terminal, bandwidth)) {
releaseBandwidth(terminal, bandwidth);