bat007

你这个代码在哪里体现了“这个程序窗口大小是定的”？

bat007

@echo off
setlocal enabledelayedexpansion
for /l %%a in (1001,1,1255) do (
    set ip=%%a
    set ip=!ip:~-3!
    ping 127.0.0.!ip! | find /i "Request timed out" >nul 2>&1 && echo ping 127.0.0.!ip!
)
复制代码

fenglin124

引用:

@echo off
for /l %%a in (1,1,255) do (
    ping 127.0.0.%%a | find /i "Request timed out" >nul 2>&1 && echo ping 127.0.0.%%a
)

如何让这段代码实现这样的功能：%%a取一位数时，写出来的是000而不是0，比如说是ping 127.0.0.000 ，而不是ping 127.0.0.0 。取1时是ping 127.0.0.001 ,而不是ping 127.0.0.1，后面的依此类推 。请各位指教。

hfg1977

还是变量截取问题，如下：

@echo off
setlocal enabledelayedexpansion&cls
for /l %%a in (1,1,255) do (
set "NUM=000%%a"
    ping 127.0.0.%%a | find /i "Request timed out" >nul 2>&1 && echo ping 127.0.0.!NUM:~-3!
)

fenglin124

这个不行啊，显示的还是忽略了前面的0了

bat007

把17楼代码的运行结果贴出来看看

fenglin124

Pinging 127.0.0.1 with 32 bytes of data:



Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128



Ping statistics for 127.0.0.1:

    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

    Minimum = 0ms, Maximum = 0ms, Average = 0ms

bat007

把@echo off删掉，再运行一遍，看看结果。