Windows回声覆盖以前的回声 [英] windows echo to overwrite previous echo

问题描述

在批处理文件中，我想在屏幕上写一个计数器，而不用滚动屏幕外的内容。我有

In a batch file, I want to write a "counter" to the screen without scrolling stuff off the screen. I have

FOR /L %%i IN (1,1,1000) DO (
< NUL set /P="Count= %%i"
)

{ < < NUL ，但这会阻止该行显示在问题中。}

{There is no space between < LT> NUL but this stops the line from showing in the question.}

此命令不会添加LF或CR，但我确实希望

This command doesn't add a LF or CR, but I do want a CR, just no LF.

最终结果应该是

Count= X

其中X是从1到1,000的计数。

where X is "counting" from 1 to 1,000.

推荐答案

@echo off
setlocal EnableDelayedExpansion

rem Get a Carriage Return (Ascii 13) in CR variable:
for /F %%a in ('copy /Z "%~F0" NUL') do set "CR=%%a"

FOR /L %%i IN (1,1,1000) DO ( < NUL set /P "=Count= %%i!CR!" )

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