
CODE: [Copy to clipboard]这样子可以正确执行代码,但是问题来啦@echo off
setlocal enabledelayedexpansion
title design by ieutk
mode con: cols=78 lines=15
color 1a
set num=0
:input
cls&echo\&echo/
set name=
set /p name= 请输入你的名字:
if not defined name goto input
echo %name%|findstr "^[0-9a-zA-Z]*$">nul && goto st||msg /v /w %username% " 你输入的名字暂时不符合要求! ">nul
goto input
:st
:: 计算输入的字符长度
set name=%name:~0,58%
set /a num+=1
for /f "delims=" %%a in ("%num%") do (
if not "!name:~%%a,1!"=="" goto st
set chi=%%a
)
set num=0
CODE: [Copy to clipboard]看上面这句代码, "|" 连接符和它前后的代码之间没有空格,但是我如果改成echo %name%|findstr "^[0-9a-zA-Z]*$">nul && goto st||msg /v /w %username% " 你输入的名字暂时不符合要求! ">nul
CODE: [Copy to clipboard]这样的话就会执行后面的代码出现预置的提示!echo %name% |findstr "^[0-9a-zA-Z]*$">nul && goto st||msg /v /w %username% " 你输入的名字暂时不符合要求! ">nul
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