小编827*_*827的帖子

如何检测用户使用JavaScript在网页上向某个方向滑动手指？

我想知道是否有一个解决方案适用于iPhone和Android手机上的网站.

在使用某个标志编译以下文件时,是否可能让g ++显示错误？

#include <iostream>
using namespace std;

int main()
{
   int arr[ 2 ];

   cout << arr[ 4 ] << endl;

   return 0;
}

我看到了一些gcc -Wall -O2 main.c只适用于C而不是C++的东西.

我想在页面加载时专注于PhoneGap应用程序中的文本输入.我已经尝试过MooTools版本$('entry').focus();以及document.getElementById('entry').focus()DOM准备好了.

当在普通的Web浏览器中查看HTML页面时,这可以正常工作,但在运行PhoneGap的iPhone模拟器中,它不起作用.

有没有办法专注于强制虚拟键盘出现的iPhone的表单字段？

Is it "good practice" to create a class like the one below that can handle the memoization process for you? The benefits of memoization are so great (in some cases, like this one, where it drops from 501003 to 1507 function calls and from 1.409 to 0.006 seconds of CPU time on my computer) that it seems a class like this would be useful.

However, I've read only negative comments on the usage of eval(). Is this usage of …

文件:Example1.java

public class Example1 implements Runnable {

    public void run() {
        for(int i = 0; i < 100000000; i++) {
            int x = 5;
            x = x * 4;
            x = x % 3;
            x = x + 9000;
            x = x * 923;
        }
    }

    public static void task() {
        for(int i = 0; i < 100000000; i++) {
            int x = 5;
            x = x * 4;
            x = x % 3;
            x = x + 9000;
            x …

我有这个代码:

#include <stdio.h>

int getAns(void);
int num;

int main() 
{
    int (*current_ans)(void);
    current_ans = &getAns;
    // HERE
    printf("%d", current_ans());    

}

int getAns()
{
    return num + 3;
}

但是,是否有可能在// HERE现场允许下一行以printf("%d", current_ans);环形方式访问getAns()？

这有我想要的功能(它的工作原理)

#include <stdio.h>
//includes other libraries needed

int foo();

int main() 
{
    while(true) 
    {

        while(foo()==1) 
        {
            //do something
        }

        //does other unrelated things

    }

}

int foo() 
{
    // Returns if a switch is on or off when the function was called 
    // on return 1;
    // off return 0;
}

但是,我希望这种情况发生:

#include <stdio.h>
//includes other libraries needed

int foo();

int main() 
{
    while(true) 
    {
        //THIS IS THE PROBLEM
        int something = foo();

        while(something==1) 
        {
            //do something
        }

        //does other …