python 实时得到cpu和内存的使用情况方法

如下所示：

#先下载psutil库:pip install psutil
import psutil
import os,datetime,time

def getMemCpu():
data = psutil.virtual_memory()
total = data.total #总内存,单位为byte
free = data.available #可以内存
memory = "Memory usage:％d"％(int(round(data.percent)))+"％"+" "
cpu = "CPU:％0.2f"％psutil.cpu_percent(interval=1)+"％"
return memory+cpu

def main():

while(True):
 info = getMemCpu()
 time.sleep(0.2)
 print info+"\b"*(len(info)+1),

if __name__=="__main__":
main()

来源：https://blog.csdn.net/CosmopolitanMe/article/details/77886222