当python中的键盘中断时,我怎么能不停止程序呢?

把它移到循环内,我猜你想继续循环而不是退出:

while True:
    try:
        userinput = input()
        if userinput == "stop":
            break
    except (KeyboardInterrupt, SystemExit):
        print('You pressed ctrl+c')
        # or just pass to print nothing

您可以轻松地在try中执行下一步,除非或设置 pass 在这之后。

while True:
    try:
        userinput = input()
        if userinput == "stop":
            break
    except (KeyboardInterrupt, SystemExit):
        # or edit it to the next state in the program.
        pass