捕捉系统按键ctrl-c等

捕捉Ctrl-C键盘事件

import time
import signal
def signal_handler(signal,frame):
    print('You pressed Ctrl+C!')
signal.signal(signal.SIGINT,signal_handler)
print('Press Ctrl+C')
for x in range(1,100):
    time.sleep(2)
    print(x)

import time
if __name__ == "__main__":
    try:
        time.sleep(10)
    except KeyboardInterrupt:
        print("Application exit!")

# 自定义信号处理函数
def my_handler(signum, frame):
    global stop
    stop = True
    print("终止")
# 设置相应信号处理的handler
signal.signal(signal.SIGINT, my_handler)    #读取Ctrl+c信号
stop = False
while True:
    try:
        #读取到Ctrl+c前进行的操作
        if stop:
            # 中断时需要处理的代码
            pass
#            break    #break只能退出当前循坏
            #中断程序需要用 raise
    except Exception as e:
        print(str(e))
        break