float RunningTime = GetRunningTime();翻译成qt
时间: 2023-11-27 10:49:54 浏览: 32
这句话的翻译可能会有一些不确定性,因为它所使用的函数 `GetRunningTime()` 并没有给出其具体实现,我们无法确定它的返回类型和参数类型。但是一般情况下,我们可以将其翻译为:
```
float RunningTime = QTime::currentTime().msecsSinceStartOfDay() / 1000.0;
```
它的作用是获取当前程序运行的时间(秒),其中 `QTime::currentTime()` 返回当前时间,`msecsSinceStartOfDay()` 返回从当天零点开始到现在的毫秒数,除以 1000.0 得到秒数。注意,这个实现方式可能与 `GetRunningTime()` 的实现方式有所不同,仅供参考。
相关问题
#include<iostream> #include<string> using namespace std; const int MAX = 100; #define W "waitting" //等待状态 #define R "running" //运行状态 #define F "finish" //完成状态 #define N "no" //未进入状态 class PROCESS { public: string name; //进程名 int prior=0; //优先数 string state=N; //运行状态 float arrivetime=0; //到达时间 float runningtime=0; //运行时间 float remaintime = 0; //剩余运行时间 float waittingtime=0; //等待时间 float finishtime=0; //完成时间 float roundtime=0; //周转时间 float weighttime=0; //带权周转时间 PROCESS* next=NULL; //用于时间片转轮算法的指针,指向下一个进程。 PROCESS& operator=(PROCESS& p); //重载运算符,方便后续对进程排序。 }; PROCESS process[MAX]; int processnumber; int timeslice; int judge=1; float Time=0;续写这段代码以实现时间片轮转调度算法
// 头文件和全局变量省略
// 重载运算符,用于后续对进程排序
PROCESS& PROCESS::operator=(PROCESS& p) {
name = p.name;
prior = p.prior;
state = p.state;
arrivetime = p.arrivetime;
runningtime = p.runningtime;
remaintime = p.remaintime;
waittingtime = p.waittingtime;
finishtime = p.finishtime;
roundtime = p.roundtime;
weighttime = p.weighttime;
next = p.next;
return *this;
}
// 时间片轮转调度算法
void RR() {
// 按到达时间排序
for (int i = 0; i < processnumber - 1; i++) {
for (int j = i + 1; j < processnumber; j++) {
if (process[j].arrivetime < process[i].arrivetime) {
swap(process[j], process[i]);
}
}
}
// 初始化
int current = 0; // 当前执行的进程
int count = 0; // 时间片计数器
PROCESS* head = &process[current]; // 时间片转轮算法的头指针
// 时间片轮转调度
while (judge) {
// 判断是否所有进程都执行完毕
int flag = 1;
for (int i = 0; i < processnumber; i++) {
if (process[i].state != F) {
flag = 0;
break;
}
}
if (flag == 1) {
break;
}
// 执行进程
if (process[current].remaintime == 0) { // 进程执行完毕
process[current].state = F;
process[current].finishtime = Time;
process[current].roundtime = process[current].finishtime - process[current].arrivetime;
process[current].weighttime = process[current].roundtime / process[current].runningtime;
head = head->next; // 头指针指向下一个进程
}
else if (count == timeslice) { // 时间片用完,切换进程
process[current].state = W;
process[current].waittingtime += timeslice;
count = 0;
head = head->next; // 头指针指向下一个进程
}
// 找到下一个可执行的进程
int next = -1;
for (int i = 0; i < processnumber; i++) {
if (process[i].state != F && process[i].arrivetime <= Time && process[i].remaintime > 0) {
next = i;
break;
}
}
// 执行下一个进程
if (next != -1 && next != current) { // 如果有下一个进程可执行
if (process[current].state == R) { // 如果当前进程正在执行
process[current].state = W;
process[current].waittingtime += count;
}
current = next;
process[current].state = R;
if (process[current].remaintime == process[current].runningtime) { // 第一次执行
process[current].waittingtime = Time - process[current].arrivetime;
}
process[current].remaintime--;
count = 1;
head = &process[current]; // 头指针指向当前进程
}
else { // 如果没有下一个进程可执行
if (process[current].state == R) {
process[current].remaintime--;
count++;
}
else if (process[current].state == W) {
process[current].waittingtime++;
}
}
Time += 1;
}
// 按进程名排序
for (int i = 0; i < processnumber - 1; i++) {
for (int j = i + 1; j < processnumber; j++) {
if (process[j].name < process[i].name) {
swap(process[j], process[i]);
}
}
}
// 输出结果
cout << "Process\tPriority\tState\tArrive Time\tRunning Time\tFinish Time\tTurnaround Time\tWeighted Turnaround Time\tWaiting Time" << endl;
for (int i = 0; i < processnumber; i++) {
cout << process[i].name << "\t" << process[i].prior << "\t\t" << process[i].state << "\t" << process[i].arrivetime << "\t\t" << process[i].runningtime << "\t\t" << process[i].finishtime << "\t\t" << process[i].roundtime << "\t\t\t" << process[i].weighttime << "\t\t\t" << process[i].waittingtime << endl;
}
}
int main() {
// 输入数据
cout << "Please input the number of processes: ";
cin >> processnumber;
cout << "Please input the time slice: ";
cin >> timeslice;
for (int i = 0; i < processnumber; i++) {
cout << "Please input the name of process " << i + 1 << ": ";
cin >> process[i].name;
cout << "Please input the priority of process " << i + 1 << ": ";
cin >> process[i].prior;
cout << "Please input the arrival time of process " << i + 1 << ": ";
cin >> process[i].arrivetime;
cout << "Please input the running time of process " << i + 1 << ": ";
cin >> process[i].runningtime;
process[i].remaintime = process[i].runningtime;
}
// 执行时间片轮转调度算法
RR();
return 0;
}
float f = 0.5, float * fPtr = &f; float * tmp = fptr; //两个指针都指向了f int * nPtr; nPtr = (int *) fPtr;
在给出的代码中,有几处问题需要进行修正。我将逐一解释并提供修正后的代码:
1. 缺少分号:在声明变量时,每个语句都应以分号结束。
修正后的代码如下:
```
float f = 0.5;
float *fPtr = &f;
float *tmp = fPtr; // 两个指针都指向了f
int *nPtr;
nPtr = (int *)fPtr;
```
2. 指针类型错误:将一个float类型的指针转换为int类型的指针,这可能会导致类型不匹配和不确定的行为。
修正后的代码如下:
```
float f = 0.5;
float *fPtr = &f;
float *tmp = fPtr; // 两个指针都指向了f
int *nPtr = (int *)&f;
```
请注意,将float指针转换为int指针可能会导致指针访问不正确的内存位置,这是不安全的操作。这里仅仅是为了演示目的,实际应用中需谨慎使用。
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