[ 48.008575] usb 4-3: >Device not responding to set address.[ 48.212421] usb 4-3: >device not accepting address 9, error -71
[ 48.324451] usb 4-3: >Device[ 48.528340] usb 4-3: >Device not responding to set address.[ 48.732165] usb 4-3</e
1.222490] 00:06: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 5.862329] usb 4-3: cp210x converter now attached to ttyUSB0 [ 8.030587] usb 4-3: usbfs: interface 0 claimed by cp210x我的扫描器警察扫描器连接到/dev/ttyS0,当插入我的USB端口时,我的跳转驱动器也能正常工作。看起来这是
这是我向StackOverflow提出的第一个问题,如果我能改进我的问题是如何被问到的,或者问到哪里,请告诉我。)我尝试了一些数学表达式,比如"4 - 3" (和"4-3"),但它们都没有用。但是字符串比较在这里也是正确的:Enter first expression to compare.eval(4-3) == 0 is FALSE