一、引入jar包

  本项目主要使用第开源jar包:https://github.com/oshi/oshi

        <dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.github.oshi/oshi-core -->
<dependency>
<groupId>com.github.oshi</groupId>
<artifactId>oshi-core</artifactId>
<version>3.5.0</version>
</dependency>

二、测试代码

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import oshi.SystemInfo;
import oshi.hardware.*;
import oshi.hardware.CentralProcessor.TickType;
import oshi.software.os.*;
import oshi.software.os.OperatingSystem.ProcessSort;
import oshi.util.FormatUtil;
import oshi.util.Util; import java.util.Arrays;
import java.util.List; /**
* The Class SystemInfoTest.
*
* @author dblock[at]dblock[dot]org
*/
public class SystemInfoTest { /**
* The main method.
*
* @param args the arguments
*/
public static void main(String[] args) {
// Options: ERROR > WARN > INFO > DEBUG > TRACE
Logger LOG = LoggerFactory.getLogger(SystemInfoTest.class); LOG.info("Initializing System...");
SystemInfo si = new SystemInfo(); HardwareAbstractionLayer hal = si.getHardware();
OperatingSystem os = si.getOperatingSystem(); System.out.println(os); LOG.info("Checking computer system...");
printComputerSystem(hal.getComputerSystem()); LOG.info("Checking Processor...");
printProcessor(hal.getProcessor()); LOG.info("Checking Memory...");
printMemory(hal.getMemory()); LOG.info("Checking CPU...");
printCpu(hal.getProcessor()); LOG.info("Checking Processes...");
printProcesses(os, hal.getMemory()); LOG.info("Checking Sensors...");
printSensors(hal.getSensors()); LOG.info("Checking Power sources...");
printPowerSources(hal.getPowerSources()); LOG.info("Checking Disks...");
printDisks(hal.getDiskStores()); LOG.info("Checking File System...");
printFileSystem(os.getFileSystem()); LOG.info("Checking Network interfaces...");
printNetworkInterfaces(hal.getNetworkIFs()); LOG.info("Checking Network parameterss...");
printNetworkParameters(os.getNetworkParams()); // hardware: displays
LOG.info("Checking Displays...");
printDisplays(hal.getDisplays()); // hardware: USB devices
LOG.info("Checking USB Devices...");
printUsbDevices(hal.getUsbDevices(true));
} private static void printComputerSystem(final ComputerSystem computerSystem) { System.out.println("manufacturer: " + computerSystem.getManufacturer());
System.out.println("model: " + computerSystem.getModel());
System.out.println("serialnumber: " + computerSystem.getSerialNumber());
final Firmware firmware = computerSystem.getFirmware();
System.out.println("firmware:");
System.out.println(" manufacturer: " + firmware.getManufacturer());
System.out.println(" name: " + firmware.getName());
System.out.println(" description: " + firmware.getDescription());
System.out.println(" version: " + firmware.getVersion());
System.out.println(" release date: " + (firmware.getReleaseDate() == null ? "unknown"
: firmware.getReleaseDate() == null ? "unknown" : FormatUtil.formatDate(firmware.getReleaseDate())));
final Baseboard baseboard = computerSystem.getBaseboard();
System.out.println("baseboard:");
System.out.println(" manufacturer: " + baseboard.getManufacturer());
System.out.println(" model: " + baseboard.getModel());
System.out.println(" version: " + baseboard.getVersion());
System.out.println(" serialnumber: " + baseboard.getSerialNumber());
} private static void printProcessor(CentralProcessor processor) {
System.out.println(processor);
System.out.println(" " + processor.getPhysicalPackageCount() + " physical CPU package(s)");
System.out.println(" " + processor.getPhysicalProcessorCount() + " physical CPU core(s)");
System.out.println(" " + processor.getLogicalProcessorCount() + " logical CPU(s)"); System.out.println("Identifier: " + processor.getIdentifier());
System.out.println("ProcessorID: " + processor.getProcessorID());
} private static void printMemory(GlobalMemory memory) {
System.out.println("Memory: " + FormatUtil.formatBytes(memory.getAvailable()) + "/"
+ FormatUtil.formatBytes(memory.getTotal()));
System.out.println("Swap used: " + FormatUtil.formatBytes(memory.getSwapUsed()) + "/"
+ FormatUtil.formatBytes(memory.getSwapTotal()));
} private static void printCpu(CentralProcessor processor) {
System.out.println("Uptime: " + FormatUtil.formatElapsedSecs(processor.getSystemUptime()));
System.out.println(
"Context Switches/Interrupts: " + processor.getContextSwitches() + " / " + processor.getInterrupts()); long[] prevTicks = processor.getSystemCpuLoadTicks();
System.out.println("CPU, IOWait, and IRQ ticks @ 0 sec:" + Arrays.toString(prevTicks));
// Wait a second...
Util.sleep(1000);
long[] ticks = processor.getSystemCpuLoadTicks();
System.out.println("CPU, IOWait, and IRQ ticks @ 1 sec:" + Arrays.toString(ticks));
long user = ticks[TickType.USER.getIndex()] - prevTicks[TickType.USER.getIndex()];
long nice = ticks[TickType.NICE.getIndex()] - prevTicks[TickType.NICE.getIndex()];
long sys = ticks[TickType.SYSTEM.getIndex()] - prevTicks[TickType.SYSTEM.getIndex()];
long idle = ticks[TickType.IDLE.getIndex()] - prevTicks[TickType.IDLE.getIndex()];
long iowait = ticks[TickType.IOWAIT.getIndex()] - prevTicks[TickType.IOWAIT.getIndex()];
long irq = ticks[TickType.IRQ.getIndex()] - prevTicks[TickType.IRQ.getIndex()];
long softirq = ticks[TickType.SOFTIRQ.getIndex()] - prevTicks[TickType.SOFTIRQ.getIndex()];
long steal = ticks[TickType.STEAL.getIndex()] - prevTicks[TickType.STEAL.getIndex()];
long totalCpu = user + nice + sys + idle + iowait + irq + softirq + steal; System.out.format(
"User: %.1f%% Nice: %.1f%% System: %.1f%% Idle: %.1f%% IOwait: %.1f%% IRQ: %.1f%% SoftIRQ: %.1f%% Steal: %.1f%%%n",
100d * user / totalCpu, 100d * nice / totalCpu, 100d * sys / totalCpu, 100d * idle / totalCpu,
100d * iowait / totalCpu, 100d * irq / totalCpu, 100d * softirq / totalCpu, 100d * steal / totalCpu);
System.out.format("CPU load: %.1f%% (counting ticks)%n", processor.getSystemCpuLoadBetweenTicks() * 100);
System.out.format("CPU load: %.1f%% (OS MXBean)%n", processor.getSystemCpuLoad() * 100);
double[] loadAverage = processor.getSystemLoadAverage(3);
System.out.println("CPU load averages:" + (loadAverage[0] < 0 ? " N/A" : String.format(" %.2f", loadAverage[0]))
+ (loadAverage[1] < 0 ? " N/A" : String.format(" %.2f", loadAverage[1]))
+ (loadAverage[2] < 0 ? " N/A" : String.format(" %.2f", loadAverage[2])));
// per core CPU
StringBuilder procCpu = new StringBuilder("CPU load per processor:");
double[] load = processor.getProcessorCpuLoadBetweenTicks();
for (double avg : load) {
procCpu.append(String.format(" %.1f%%", avg * 100));
}
System.out.println(procCpu.toString());
} private static void printProcesses(OperatingSystem os, GlobalMemory memory) {
System.out.println("Processes: " + os.getProcessCount() + ", Threads: " + os.getThreadCount());
// Sort by highest CPU
List<OSProcess> procs = Arrays.asList(os.getProcesses(5, ProcessSort.CPU)); System.out.println(" PID %CPU %MEM VSZ RSS Name");
for (int i = 0; i < procs.size() && i < 5; i++) {
OSProcess p = procs.get(i);
System.out.format(" %5d %5.1f %4.1f %9s %9s %s%n", p.getProcessID(),
100d * (p.getKernelTime() + p.getUserTime()) / p.getUpTime(),
100d * p.getResidentSetSize() / memory.getTotal(), FormatUtil.formatBytes(p.getVirtualSize()),
FormatUtil.formatBytes(p.getResidentSetSize()), p.getName());
}
} private static void printSensors(Sensors sensors) {
System.out.println("Sensors:");
System.out.format(" CPU Temperature: %.1f°C%n", sensors.getCpuTemperature());
System.out.println(" Fan Speeds: " + Arrays.toString(sensors.getFanSpeeds()));
System.out.format(" CPU Voltage: %.1fV%n", sensors.getCpuVoltage());
} private static void printPowerSources(PowerSource[] powerSources) {
StringBuilder sb = new StringBuilder("Power: ");
if (powerSources.length == 0) {
sb.append("Unknown");
} else {
double timeRemaining = powerSources[0].getTimeRemaining();
if (timeRemaining < -1d) {
sb.append("Charging");
} else if (timeRemaining < 0d) {
sb.append("Calculating time remaining");
} else {
sb.append(String.format("%d:%02d remaining", (int) (timeRemaining / 3600),
(int) (timeRemaining / 60) % 60));
}
}
for (PowerSource pSource : powerSources) {
sb.append(String.format("%n %s @ %.1f%%", pSource.getName(), pSource.getRemainingCapacity() * 100d));
}
System.out.println(sb.toString());
} private static void printDisks(HWDiskStore[] diskStores) {
System.out.println("Disks:");
for (HWDiskStore disk : diskStores) {
boolean readwrite = disk.getReads() > 0 || disk.getWrites() > 0;
System.out.format(" %s: (model: %s - S/N: %s) size: %s, reads: %s (%s), writes: %s (%s), xfer: %s ms%n",
disk.getName(), disk.getModel(), disk.getSerial(),
disk.getSize() > 0 ? FormatUtil.formatBytesDecimal(disk.getSize()) : "?",
readwrite ? disk.getReads() : "?", readwrite ? FormatUtil.formatBytes(disk.getReadBytes()) : "?",
readwrite ? disk.getWrites() : "?", readwrite ? FormatUtil.formatBytes(disk.getWriteBytes()) : "?",
readwrite ? disk.getTransferTime() : "?");
HWPartition[] partitions = disk.getPartitions();
if (partitions == null) {
// TODO Remove when all OS's implemented
continue;
}
for (HWPartition part : partitions) {
System.out.format(" |-- %s: %s (%s) Maj:Min=%d:%d, size: %s%s%n", part.getIdentification(),
part.getName(), part.getType(), part.getMajor(), part.getMinor(),
FormatUtil.formatBytesDecimal(part.getSize()),
part.getMountPoint().isEmpty() ? "" : " @ " + part.getMountPoint());
}
}
} private static void printFileSystem(FileSystem fileSystem) {
System.out.println("File System:"); System.out.format(" File Descriptors: %d/%d%n", fileSystem.getOpenFileDescriptors(),
fileSystem.getMaxFileDescriptors()); OSFileStore[] fsArray = fileSystem.getFileStores();
for (OSFileStore fs : fsArray) {
long usable = fs.getUsableSpace();
long total = fs.getTotalSpace();
System.out.format(
" %s (%s) [%s] %s of %s free (%.1f%%) is %s "
+ (fs.getLogicalVolume() != null && fs.getLogicalVolume().length() > 0 ? "[%s]" : "%s")
+ " and is mounted at %s%n",
fs.getName(), fs.getDescription().isEmpty() ? "file system" : fs.getDescription(), fs.getType(),
FormatUtil.formatBytes(usable), FormatUtil.formatBytes(fs.getTotalSpace()), 100d * usable / total,
fs.getVolume(), fs.getLogicalVolume(), fs.getMount());
}
} private static void printNetworkInterfaces(NetworkIF[] networkIFs) {
System.out.println("Network interfaces:");
for (NetworkIF net : networkIFs) {
System.out.format(" Name: %s (%s)%n", net.getName(), net.getDisplayName());
System.out.format(" MAC Address: %s %n", net.getMacaddr());
System.out.format(" MTU: %s, Speed: %s %n", net.getMTU(), FormatUtil.formatValue(net.getSpeed(), "bps"));
System.out.format(" IPv4: %s %n", Arrays.toString(net.getIPv4addr()));
System.out.format(" IPv6: %s %n", Arrays.toString(net.getIPv6addr()));
boolean hasData = net.getBytesRecv() > 0 || net.getBytesSent() > 0 || net.getPacketsRecv() > 0
|| net.getPacketsSent() > 0;
System.out.format(" Traffic: received %s/%s%s; transmitted %s/%s%s %n",
hasData ? net.getPacketsRecv() + " packets" : "?",
hasData ? FormatUtil.formatBytes(net.getBytesRecv()) : "?",
hasData ? " (" + net.getInErrors() + " err)" : "",
hasData ? net.getPacketsSent() + " packets" : "?",
hasData ? FormatUtil.formatBytes(net.getBytesSent()) : "?",
hasData ? " (" + net.getOutErrors() + " err)" : "");
}
} private static void printNetworkParameters(NetworkParams networkParams) {
System.out.println("Network parameters:");
System.out.format(" Host name: %s%n", networkParams.getHostName());
System.out.format(" Domain name: %s%n", networkParams.getDomainName());
System.out.format(" DNS servers: %s%n", Arrays.toString(networkParams.getDnsServers()));
System.out.format(" IPv4 Gateway: %s%n", networkParams.getIpv4DefaultGateway());
System.out.format(" IPv6 Gateway: %s%n", networkParams.getIpv6DefaultGateway());
} private static void printDisplays(Display[] displays) {
System.out.println("Displays:");
int i = 0;
for (Display display : displays) {
System.out.println(" Display " + i + ":");
System.out.println(display.toString());
i++;
}
} private static void printUsbDevices(UsbDevice[] usbDevices) {
System.out.println("USB Devices:");
for (UsbDevice usbDevice : usbDevices) {
System.out.println(usbDevice.toString());
}
}
}

三、结果

Microsoft Windows 10 build 15063
manufacturer: LENOVO
model: 80RU
serialnumber: R90LN08UR9N0B6922009
firmware:
manufacturer: LENOVO
name: E5CN53WW
description: E5CN53WW
version: LENOVO - 0
release date: 07/11/2016
baseboard:
manufacturer: LENOVO
model: unknown
version: SDK0K09938 WIN
serialnumber: R90LN08U
Intel(R) Core(TM) i5-6300HQ CPU @ 2.30GHz
1 physical CPU package(s)
4 physical CPU core(s)
4 logical CPU(s)
Identifier: Intel64 Family 6 Model 94 Stepping 3
ProcessorID: BFEBFBFF000506E3
Memory: 1.5 GiB/7.8 GiB
Swap used: 84.4 MiB/6.3 GiB
Uptime: 1 days, 11:45:25
Context Switches/Interrupts: 648525190 / 338012494
CPU, IOWait, and IRQ ticks @ 0 sec:[18421421, 0, 10068431, 288934828, 0, 266351, 143296, 0]
CPU, IOWait, and IRQ ticks @ 1 sec:[18421578, 0, 10068486, 288938671, 0, 266351, 143304, 0]
User: 3.9% Nice: 0.0% System: 1.4% Idle: 94.6% IOwait: 0.0% IRQ: 0.0% SoftIRQ: 0.2% Steal: 0.0%
CPU load: 13.0% (counting ticks)
CPU load: 17.4% (OS MXBean)
CPU load averages: N/A N/A N/A
CPU load per processor: 19.3% 12.8% 12.8% 12.8%
Processes: 184, Threads: 2447
PID %CPU %MEM VSZ RSS Name
0 100.0 0.0 64 KiB 8 KiB System Idle Process
5416 10.0 1.6 3.4 GiB 130.4 MiB java.exe
12676 8.8 1.3 2.1 GiB 104.9 MiB java.exe
11988 5.8 16.8 3.3 GiB 1.3 GiB idea64.exe
5312 4.4 1.3 2.0 TiB 101.4 MiB chrome.exe
Sensors:
CPU Temperature: 42.0°C
Fan Speeds: [0]
CPU Voltage: 0.0V
Power: Charging
System Battery @ 96.6%
Disks:
\\.\PHYSICALDRIVE0: (model: SanDisk SD7SN6S128G (标准磁盘驱动器) - S/N: 161416401094) size: 128.0 GB, reads: 1117123 (33.4 GiB), writes: 703948 (21.2 GiB), xfer: 2570354 ms
|-- 磁盘 #0,分区 #0: GPT: Basic Data (GPT: 基本数据) Maj:Min=0:0, size: 471.9 MB @ F:\
|-- 磁盘 #0,分区 #1: GPT: System (GPT: 系统) Maj:Min=0:1, size: 104.9 MB
|-- 磁盘 #0,分区 #2: GPT: Basic Data (GPT: 基本数据) Maj:Min=0:2, size: 126.6 GB @ C:\
|-- 磁盘 #0,分区 #3: GPT: Basic Data (GPT: 基本数据) Maj:Min=0:3, size: 845.2 MB @ G:\
\\.\PHYSICALDRIVE1: (model: WDC WD10SPCX-24HWST1 (标准磁盘驱动器) - S/N: WD-WX31A86F35XC) size: 1.0 TB, reads: 379263 (6.0 GiB), writes: 103105 (2.6 GiB), xfer: 4014792 ms
|-- 磁盘 #1,分区 #0: GPT: Basic Data (GPT: 基本数据) Maj:Min=1:0, size: 475.9 GB @ D:\
|-- 磁盘 #1,分区 #1: GPT: Basic Data (GPT: 基本数据) Maj:Min=1:1, size: 524.3 GB @ E:\
File System:
File Descriptors: 0/0
本地固定磁盘 (F:) (Fixed drive) [NTFS] 436.1 MiB of 450.0 MiB free (96.9%) is \\?\Volume{9afc85a4-9f44-11e7-ab77-a5dc01376557}\ and is mounted at F:\
本地固定磁盘 (C:) (Fixed drive) [NTFS] 12.9 GiB of 117.9 GiB free (11.0%) is \\?\Volume{01a1a160-fbb4-49c7-be19-6dd52882bcbc}\ and is mounted at C:\
本地固定磁盘 (G:) (Fixed drive) [NTFS] 303.4 MiB of 806.0 MiB free (37.6%) is \\?\Volume{9afc85a5-9f44-11e7-ab77-a5dc01376557}\ and is mounted at G:\
本地固定磁盘 (D:) (Fixed drive) [NTFS] 161.8 GiB of 443.2 GiB free (36.5%) is \\?\Volume{a287f045-a9ac-4669-ab44-bdbd74692600}\ and is mounted at D:\
本地固定磁盘 (E:) (Fixed drive) [NTFS] 246.0 GiB of 488.3 GiB free (50.4%) is \\?\Volume{84c6da35-38e7-457e-b528-c12da6ed2898}\ and is mounted at E:\
Network interfaces:
Name: wlan0 (Microsoft Wi-Fi Direct Virtual Adapter)
MAC Address: 84:ef:18:36:4c:ab
MTU: 1500, Speed: 0 bps
IPv4: []
IPv6: [fe80:0:0:0:55ed:790e:b70:ea43]
Traffic: received ?/?; transmitted ?/?
Name: net2 (Microsoft Teredo Tunneling Adapter)
MAC Address: 00:00:00:00:00:00:00:e0
MTU: 1280, Speed: 100 Kbps
IPv4: []
IPv6: [2001:0:9d38:6ab8:2446:2d3f:34a2:86f5, fe80:0:0:0:2446:2d3f:34a2:86f5]
Traffic: received 15 packets/2.2 KiB (0 err); transmitted 1580 packets/209.9 KiB (0 err)
Name: eth7 (Realtek PCIe GBE Family Controller)
MAC Address: 54:ee:75:b0:ed:33
MTU: 1500, Speed: 0 bps
IPv4: []
IPv6: [fe80:0:0:0:d0:cff0:250f:34d0]
Traffic: received ?/?; transmitted ?/?
Name: wlan2 (Intel(R) Dual Band Wireless-AC 3165)
MAC Address: 84:ef:18:36:4c:aa
MTU: 1500, Speed: 72.2 Mbps
IPv4: [172.16.3.132]
IPv6: []
Traffic: received 99670 packets/87.7 MiB (0 err); transmitted 68049 packets/14.9 MiB (0 err)
Network parameters:
Host name: Sindrol-NTB
Domain name: Sindrol-NTB
DNS servers: [202.106.0.20, 114.114.114.114]
IPv4 Gateway: 172.16.3.254
IPv6 Gateway: ::
Displays:
Display 0:
Manuf. ID=BOE, Product ID=65d, Digital, Serial=00000000, ManufDate=1/2015, EDID v1.4
34 x 19 cm (13.4 x 7.5 in)
Preferred Timing: Clock 141MHz, Active Pixels 1920x1080
Manufacturer Data: 000000000000000000000000000000000000
Unspecified Text: BOE HF
Unspecified Text: NV156FHM-N42
Display 1:
Manuf. ID=AOC, Product ID=2476, Digital, Serial=00000319, ManufDate=5/2016, EDID v1.3
52 x 29 cm (20.5 x 11.4 in)
Preferred Timing: Clock 148MHz, Active Pixels 1920x1080
Range Limits: Field Rate 50-76 Hz vertical, 30-83 Hz horizontal, Max clock: 170 MHz
Monitor Name: 2476WM
Serial Number: E71G5BA000793
USB Devices:
Intel(R) USB 3.0 可扩展主机控制器 - 1.0 (Microsoft) (通用 USB xHCI 主机控制器)
|-- USB 根集线器(USB 3.0) ((标准 USB 集线器))
|-- Apple Mobile Device USB Driver (Apple, Inc.)
|-- Apple iPhone (Apple Inc.)
|-- USB Composite Device ((标准 USB 主控制器))
|-- Lenovo EasyCamera (Bison)
|-- USB Composite Device ((标准 USB 主控制器))
|-- USB 输入设备 ((标准系统设备))
|-- HID Keyboard Device ((标准键盘))
|-- USB 输入设备 ((标准系统设备))
|-- HID-compliant mouse (Microsoft)
|-- 符合 HID 标准的供应商定义设备 ((标准系统设备))
|-- 符合 HID 标准的用户控制设备 (Microsoft)
|-- 符合 HID 标准的系统控制器 ((标准系统设备))
|-- USB 输入设备 ((标准系统设备))
|-- 符合 HID 标准的供应商定义设备 ((标准系统设备))
|-- USB 输入设备 ((标准系统设备))
|-- HID-compliant mouse (Microsoft)
|-- 英特尔(R) 无线 Bluetooth(R) (Intel Corporation)

JAVA通过oshi获取系统和硬件信息的更多相关文章

  1. PowerShell 获取系统的硬件信息

    1.获取系统的BIOS的信息: Get-WMIObject -Class Win32_BIOS 2.获取内存信息: Get-WMIObject -Class Win32_PhysicalMemory ...

  2. Inxi:获取Linux系统和硬件信息的神器

    导读 在这篇文章里,我们将看到如何使用inxi来获取这些详情信息.在论坛技术支持中,它可以作为调试工具,迅速确定用户的系统配置和硬件信息. Inxi是一个可以获取完整的系统和硬件详情信息的命令行工具, ...

  3. System.getProperty()获取系统的配置信息

    原文地址:http://www.jsjtt.com/java/Javajichu/105.html 此处记录备用. 1. 通过System.getProperty()可以获取系统的配置信息,Syste ...

  4. Java System.getProperty("java.io.tmpdir") 获取系统临时目录

    System.getProperty("java.io.tmpdir") 是获取操作系统的缓存临时目录 在windows7中的目录是: C:\Users\登录用户~1\AppDat ...

  5. System.getProperty()获取系统的配置信息(系统变量)

    原文地址:http://www.jsjtt.com/java/Javajichu/105.html 此处记录备用. 1. 通过System.getProperty()可以获取系统的配置信息,Syste ...

  6. linux查看系统的硬件信息

    linux查看系统的硬件信息,并不像windows那么直观,这里我罗列了查看系统信息的实用命令,并做了分类,实例解说. cpu lscpu命令,查看的是cpu的统计信息. blue@blue-pc:~ ...

  7. linux查看系统的硬件信息【转】

    linux查看系统的硬件信息,并不像windows那么直观,这里我罗列了查看系统信息的实用命令,并做了分类,实例解说. cpu lscpu命令,查看的是cpu的统计信息. blue@blue-pc:~ ...

  8. python获取系统内存占用信息的实例方法

    psutil是一个跨平台库(http://code.google.com/p/psutil/),能够轻松实现获取系统运行的进程和系统利用率(包括CPU.内存.磁盘.网络等)信息.它主要应用于系统监控, ...

  9. C#获取当前主机硬件信息

    using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.T ...

随机推荐

  1. Highcharts实现图形报表(我主要实现javaweb开发的图形报表)

    官网网址:https://www.hcharts.cn/ 中文版的(参考起来方便,你懂的.):http://www.mamicode.com/info-detail-446038.html 网上已经有 ...

  2. POJ 3040 Allowance【贪心】

    POJ 3040 题意: 给奶牛发工资,每周至少 C 元.约翰手头上有面值V_i的硬币B_i个,这些硬币的最小公约数为硬币的最小面值.求最多能发几周? 分析: 贪心策略是使多发的面额最小(最优解).分 ...

  3. Java相关英语单词

    day1 Java概述 掌握 .JDK abbr. Java开发工具包(Java Developer's Kit) (abbr.缩写) .JRE abbr. Java运行环境(Java Runtime ...

  4. python日期与时间

    1.介绍 Python 提供了一个 time 和 calendar 模块可以用于格式化日期和时间. 时间间隔是以秒为单位的浮点小数. 每个时间戳都以自从1970年1月1日午夜(历元)经过了多长时间来表 ...

  5. 二分搜索-poj1064

    题目大概意思是:给你N个长度的电缆,需要你编写程序 将它分割成 K 根长度相等的小电缆.而我们的目的就是要求出分割出的 最大长度 可以为多少.此处可以应用二分搜索的知识来实现查找最终长度. 代码实现 ...

  6. 仿win10环境变量助手

    相信很多人用过win10后再换回win7或者xp等系统都会有些不习惯,所以在这里安利一款博主自己开发的小软件:环境变量助手. 继承于Win10风格的环境变量,操作简单方便,使用时需要账户权限. 注意: ...

  7. Anchor 的两种编程实现

    aspect ratios:高宽比率 假设 window 的尺寸为:\((w, h)\),锚框的尺寸为:\((w_1, h_1)\),则有: \[ \begin{cases} \frac{w_1h_1 ...

  8. Nginx 安装配置文件解析

    源地址:https://www.cnblogs.com/Chiler/p/8027167.html 前言 Nginx (engine x) 是一个高性能的HTTP和反向代理服务器,也是一个IMAP/P ...

  9. Stream 与 byte[] 互转

    public byte[] StreamToBytes(Stream stream) { byte[] bytes = new byte[stream.Length]; stream.Read(byt ...

  10. 网页图表Highcharts实践教程之认识Highcharts

    网页图表Highcharts实践教程之认识Highcharts 认识Highcharts Highcharts是国际知名的一款图表插件.它完全使用Javascript编写实现.其结构清晰,使用简单.开 ...