判断是pc还是移动端,如果是pc端,就加载index.css和index.js文件,如果是移动端,就加载indexm.css文件的js代码
时间: 2023-12-14 14:39:38 浏览: 77
可以通过判断浏览器的User-Agent来判断是PC端还是移动端。以下是一个示例代码,可以根据需要做相应修改:
```javascript
var ua = navigator.userAgent.toLowerCase();
if (ua.indexOf('mobile') !== -1) {
// 移动端
loadScript('indexm.js');
loadCss('indexm.css');
} else {
// PC端
loadScript('index.js');
loadCss('index.css');
}
function loadScript(url) {
var script = document.createElement('script');
script.src = url;
document.head.appendChild(script);
}
function loadCss(url) {
var link = document.createElement('link');
link.rel = 'stylesheet';
link.href = url;
document.head.appendChild(link);
}
```
该代码会根据浏览器的User-Agent加载不同的CSS和JS文件。如果是移动端,就会加载indexm.css和indexm.js文件;如果是PC端,就会加载index.css和index.js文件。
相关问题
\begin{aligned} &k_{12} ={\frac{3g(-2m_{1}-4(m_{2}+m_{3}))}{-2\left(4m_{1}+3(m_{2}+4m_{3})\right)l_{1}}},k_{13}={\frac{-9g m_{3}}{-2\left(4m_{1}+3\left(m_{2}+4m_{3}\right)\right)l_{1}}}. \ &k_{17} =\frac{3\left(-2m_1-m_1-4m_3\right)}{-2\left(4m_1+3\left(2m_2+4m_3\right)\right)l_1}, \ &k_{22} =\frac{\left(2g m_{2}(m_{1}+2(m_{2}+m_{3}))l_{1}^{2}l_{2}\right)}{4m_{2}^{2}l_{1}^{2}l_{2}^{2}-\frac{16}{9}m_{2}(m_{1}+3(m_{2}+m_{3}))l_{1}^{2}l_{2}^{2}}. \ &k_{23} =\frac{-\left(4g m_{2}(m_{1}+3(m_{2}+m_{3}))l_{1}^{2}l_{2}\right)}{4m_{2}^{2}l_{1}^{2}l_{2}^{2}-\frac{16}{9}m_{2}(m_{1}+3(m_{2}+m_{3}))l_{1}^{2}l_{2}^{2}}, \ &k_{27} ={\frac{2m_{2}(m_{1}+2(m_{2}+m_{3}))l_{1}^{2}l_{2}-{\frac{4}{3}}m_{2}(m_{1}+3(m_{2}+m_{3})l_{1}^{2}l_{2}}{4m_{2}^{2}l_{1}^{2}l_{2}^{2}-{\frac{16}{9}}m_{2}(m_{1}+3(m_{2}+m_{3}))l_{1}^{2}l_{2}^{2}}} \end{aligned}怎么用matlab表达
程未完成且到达时间小于等于当前时间
if (processes[i]->burst_time < shortest_time) { //在MATLAB中,可以使用以下代码表示给定的一组数学公式:
```
syms m1 m2 m 如果进程服务时间更短
shortest_time = processes[i]->burst_time; // 更新最短服务时间
shortest_time3 l1 l2 g;
% 计算k12和k13
k12 = (3*g*(-2*m1-4*(_index = i; // 更新最短服务时间进程下标
}
}
}
if (shortest_time_indexm2+m3)))/(-2*(4*m1+3*(m2+4*m3))*l1);
k13 = (- != -1) { // 如果有进程可执行
Process *current_process = processes[shortest_time_index];
current9*g*m3)/(-2*(4*m1+3*(m2+4*m3))*l1);
% 计算k17_process->start_time = current_time; // 更新开始时间
current_time += current_process->burst_time; // 更新当前时间
k17 = (3*(-2*m1-m1-4*m3))/(-2*(4*m1+3*(2*m2 current_process->remaining_time = 0; // 进程完成
current_process->end_time = current_time; // 更新结束+4*m3))*l1);
% 计算k22、k23和k27
k22 = (2*g*m2*(时间
visited[shortest_time_index] = 1; // 标记进程已处理过
remaining_processes--; //m1+2*(m2+m3))*l1^2*l2)/(4*m2^2*l1^2*l2^ 剩余进程数减一
} else {
current_time++; // 空闲时间
}
}
free(queue2-16/9*m2*(m1+3*(m2+m3))*l1^2*l2^2);
k23); // 释放就绪队列内存
free(visited); // 释放标记数组内存
}
// = (-4*g*m2*(m1+3*(m2+m3))*l1^2*l2)/(4*m2^2 显示进程信息
void showProcessInfo(Process *process) {
printf("Process %d: arrival_time=%d, burst_time=%*l1^2*l2^2-16/9*m2*(m1+3*(m2+m3))*l1^2d, priority=%d, start_time=%d, end_time=%d\n",
process->id, process->arrival_time, process->*l2^2);
k27 = (2*m2*(m1+2*(m2+m3))*l1^2*l2burst_time, process->priority, process->start_time, process->end_time);
}
// 显示所有进程信息
void showAll-4/3*m2*(m1+3*(m2+m3))*l1^2*l2)/(4*m2^2ProcessInfo(Process *processes[], int n) {
printf("All processes:\n");
for (int i = 0; i*l1^2*l2^2-16/9*m2*(m1+3*(m2+m3))*l1^2 < n; i++) {
showProcessInfo(processes[i]);
}
}
int main() {
int n; // 进程数*l2^2);
% 输出结果
disp(['k12 = ', char(k12)]);
disp(['k13 = ', char(k13)]);
printf("Please enter the number of processes (max=%d): ", MAX_N);
scanf("%d", &n);
Processdisp(['k17 = ', char(k17)]);
disp(['k22 = ', char(k22)]);
disp(['k23 = ', char(k23 *processes[n]; // 进程指针数组
for (int i = 0; i < n; i++) {
)]);
disp(['k27 = ', char(k27)]);
```
这段代码使用syms函数定义了变量m1、m2 processes[i] = (Process *)malloc(sizeof(Process)); // 创建进程结构体
printf("Please enter the arrival time of、m3、l1、l2和g为符号变量,然后计算了给定的数学公式 process %d: ", i + 1);
scanf("%d", &processes[i]->arrival_time);
printf("Please enter the,并使用char函数将符号表达式转换为字符串。最后,使用disp函数输出了每个结果。
阅读全文