西安企业门户网站建设简述网络营销的特点是什么

在开发过程中，经常会碰到需要设置程序优先级，这时候可以手动到任务管理器中调整，但是这多多少少有些不方便，那么这时候我们就可以通过subprocess调用wmic命令来实现，方法如下:

step 1 必要的引用:

import subprocess                           # Subprocess calling

step 2 函数封装:

def set_priority_by_name(process_name, priority="normal"):priority_map = {"realtime": 256,         # REALTIME_PRIORITY_CLASS（实时）"high": 128,             # HIGH_PRIORITY_CLASS（高）"above_normal": 32768,   # ABOVE_NORMAL_PRIORITY_CLASS（高于正常）"normal": 32,            # NORMAL_PRIORITY_CLASS（正常）"below_normal": 16384,   # BELOW_NORMAL_PRIORITY_CLASS（低于正常）"low": 64,               # IDLE_PRIORITY_CLASS（低）}# 获取优先级数值（默认正常）priority_value = priority_map.get(priority.lower(), 32)# 构造 wmic 命令cmd = f'wmic process where name="{process_name}" call setpriority {priority_value}'try:  # 需要管理员权限（尤其是 high/realtime）subprocess.run(cmd, check=True, shell=True, capture_output=True)except subprocess.CalledProcessError as e:print(f"speed level set failed: {e.stderr.decode().strip()}")except Exception as e:print(f"unknown error: {str(e)}")else:print(f"set {process_name}'s priority to: {priority}")#end tray#end def

step3. 调用 

set_priority_by_name("yourapp1.exe", "above_normal")    # 设为above_normal
set_priority_by_name("yourapp2.exe", "high")            # 设为high