读取树梅派内存使用情况

方法一：

 free -m

方法二：

建立一个文件  RAM.py 运行.

#!usr/bin/python#-*- coding: UTF-8 -*-import osimport timeimport re while True:    # Get memory usage info    cpuinfo = os.popen("free -m | grep Mem")    strMem = cpuinfo.readline()     # Get all the number from string    numMem = re.findall("\d+", strMem)    print("Total memory: %sMB, Used memory: %sMB, Memory usage:%d%%" \        %(numMem[0], numMem[1], int(numMem[1])*100/int(numMem[0])))     time.sleep(3)

运行结果：

参考：http://www.eefocus.com/nightseas/blog/15-05/312904_949ea.html