易语言获取cpu使用率
时间: 2023-05-18 18:02:00 浏览: 298
易语言是一种针对Windows操作系统的编程语言,它可以通过系统API获取CPU使用率信息。
想要获取CPU使用率,可以使用Windows API函数——GetSystemTimes()。这个函数可以获得系统的运行时间以及CPU的内核态和用户态运行时间。借助这些数据,可以计算出CPU的使用率。
首先,使用系统API函数GetSystemTimes()获取系统运行时间和CPU运行时间,然后通过公式计算CPU使用率:
CPU使用率 = (CPU运行时间/系统运行时间) * 100%
易语言代码如下:
```
Private Declare Sub GetSystemTime Lib "kernel32" Alias "GetSystemTime" _
(ByRef lpSystemTime As SYSTEMTIME)
Private Declare Function GetSystemTimes Lib "kernel32" ( _
lpIdleTime As ULARGE_INTEGER, _
lpKernelTime As ULARGE_INTEGER, _
lpUserTime As ULARGE_INTEGER) As Long
Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type
Type SYSTEMTIME
wYear As Integer
wMonth As Integer
wDayOfWeek As Integer
wDay As Integer
wHour As Integer
wMinute As Integer
wSecond As Integer
wMilliseconds As Integer
End Type
Dim IdleTime1 As FILETIME, IdleTime2 As FILETIME
Dim KernelTime1 As FILETIME, KernelTime2 As FILETIME
Dim UserTime1 As FILETIME, UserTime2 As FILETIME
Dim systemtime1 As SYSTEMTIME, systemtime2 As SYSTEMTIME
Dim dIdleTime As Double, dKernelTime As Double, dUserTime As Double
Dim dTimeInterval As Double, dCpuUsage As Double
GetSystemTime systemtime1
GetSystemTimes IdleTime1, KernelTime1, UserTime1
'等待一段时间,再次获取
Sleep 1000
GetSystemTime systemtime2
GetSystemTimes IdleTime2, KernelTime2, UserTime2
'计算时间差
dTimeInterval = (systemtime2.wHour - systemtime1.wHour) * 3600 + _
(systemtime2.wMinute - systemtime1.wMinute) * 60 + _
(systemtime2.wSecond - systemtime1.wSecond)
'计算CPU使用率
dIdleTime = Abs((IdleTime2.dwHighDateTime - IdleTime1.dwHighDateTime) * 429.4967296 + _
(IdleTime2.dwLowDateTime - IdleTime1.dwLowDateTime) / 10000000)
dKernelTime = Abs((KernelTime2.dwHighDateTime - KernelTime1.dwHighDateTime) * 429.4967296 + _
(KernelTime2.dwLowDateTime - KernelTime1.dwLowDateTime) / 10000000)
dUserTime = Abs((UserTime2.dwHighDateTime - UserTime1.dwHighDateTime) * 429.4967296 + _
(UserTime2.dwLowDateTime - UserTime1.dwLowDateTime) / 10000000)
dCpuUsage = (dKernelTime + dUserTime) / dTimeInterval * 100
MsgBox "CPU使用率:" + Format(dCpuUsage, "0.00") + "%"
```
通过以上代码,就能够获取系统当前的CPU使用率了。需要注意的是,获取CPU使用率时需要较高的系统权限,否则无法获取到正确的数据。