在MainActivity顶部,我添加了数组变量:
"2" + "3" == "23"
然后点击一下按钮,我使用function addFunction() {
var x = parseInt(document.getElementById("firstInput").value);
var y = parseInt(document.getElementById("secondInput").value);
var sum=x+y;
alert('Sum is:'+sum);
}
迭代每个private final String[] ipaddresses = new String[]{
"http://10.0.0.1:8098/?cmd=nothing",
"http://10.0.0.3:8098/?cmd=nothing",
"http://10.0.0.2:8098/?cmd=nothing"};
。
我检查了我的PC上的Web服务器,PC上有哪个IP。
我向服务器发送命令并返回结果。
问题是,如何构建一个包含所有逻辑可用IP地址的阵列? 由于我的PC有时可能在IP 10.0.0.2上,当我重新启动电脑或移动到另一台电脑时,IP可能是其他类似10.0.0.3
这是我也循环IP的按钮代码
for loop
新课程:
IP address
答案 0 :(得分:2)
从10.0.0.0到10.0.0.255生成一组IP地址就像迭代最后一段的有效数字列表一样简单:
List<String> addresses = new ArrayList<>();
int min = 0;
int max = 255;
for(int i = min; i <= max; i++) {
String address = "10.0.0." + i;
addresses.add(address);
}
现在addresses
列表中包含所有有效的IP地址。可以通过调整最小值和最大值来缩小生成的地址,以缩小可用的地址范围。
答案 1 :(得分:2)
这是我的建议:
public class IpRange {
private static String ipMain = "10.0.0.";
private static int minIpRange = 2;
private static int maxIpRange = 255;
private static String[] ipAddresses = new String[maxIpRange];
public static void main(String[] args) {
for (int i = minIpRange; i < maxIpRange; i++) {
String ipRange = ipMain + i;
//IP range in Array
ipAddresses[i] = ipRange;
//if you need full IP range in Url, then unmark the following 2 lines and mark above line
//String urlRange = "http://" + ipRange + ":8098/?cmd=nothing";
//ipAddresses[i] = urlRange;
}
//testing array results
for (int i = minIpRange; i < maxIpRange; i++)
System.out.println(ipAddresses[i]);
}
}
IP地址范围在Array
中10.0.0.2
10.0.0.3
10.0.0.4
10.0.0.5
etc.
如果需要,输出将像完整的Url一样(只需修改代码):
http://10.0.0.2:8098/?cmd=nothing
http://10.0.0.3:8098/?cmd=nothing
http://10.0.0.4:8098/?cmd=nothing
http://10.0.0.5:8098/?cmd=nothing
http://10.0.0.6:8098/?cmd=nothing
etc.
注意:该类用于演示,仅作为如何实现此任务的示例,由个人修改并在相关代码中实现它,以满足最终要求
修改强> 我已经优化了代码,这里是更新版本:
public class IpRange {
private String ipMain = "10.0.0.";
private int startRange = 2; // 2 = 10.0.0.2
private int endRange = 5; // 5 = 10.0.0.5
private int ipRangeLength = endRange - startRange;
private String urlParam = ":8098/?cmd=nothing";
public static void main(String[] args) {
IpRange ipRange = new IpRange();
// true -> ip range url with parameters / false -> only ip range
String[] results = ipRange.ipRangeGenerator(true);
for (String output : results)
System.out.println(output);
}
public String[] ipRangeGenerator(boolean link) {
String[] ipAddresses = new String[ipRangeLength];
String urlRange;
for (int i = 0; i < ipRangeLength; i++) {
String ipRange = ipMain + (startRange + i);
urlRange = ipRange;
if (link)
urlRange = "http://" + ipRange + urlParam;
ipAddresses[i] = urlRange;
}
return ipAddresses;
}
}