批处理
批处理
实验要求
有两个文本如下,实际中并不知道两文本各有多少行:
文本1.txt
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
ccccccccccccccccccccccccccccccccccccccc
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
ggggggggggggggggggggggggggggggggggggggg
wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
文本2.txt
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
要求用Windows下批处理和Linux下的shell脚本完成,两文本交替输出:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
ccccccccccccccccccccccccccccccccccccccc
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
ggggggggggggggggggggggggggggggggggggggg
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
要求:
1 尽量不生成临时文件
2 代码要高效,代码尽量简洁
3 给出各种情况的测试结果截图(正常文件,巨大文件,一个空文件,两个空文件)
Windows
@echo off
set "paths=1.txt"
for %%a in ("%paths%") do (
if "%%~za" equ "0" (
echo "1.txt empty"
) else (
echo "1.txt not empty"
)
)
set "paths=2.txt"
for %%a in ("%paths%") do (
if "%%~za" equ "0" (
echo "2.txt empty"
pause
) else (
echo "2.txt not empty"
)
)
for /f "delims=" %%i in (1.txt) do set /a n+=1&call,set "_%%n%%=%%i"
for /f "delims=" %%i in (2.txt) do set /a m+=1&call,set ".%%m%%=%%i"
if %n% gtr %m% (set "num=%n%") else (set "num=%m%")
for /l %%i in (1,1,%num%) do (
if defined _%%i call,echo %%_%%i%%
if defined .%%i call,echo %%.%%i%%
)
pause>nul
正常文件,正确输出
巨大文件,终端卡死
空文件,识别为空
Linux
#!/bin/bash
file1="文本1.txt"
file2="文本2.txt"
# 使用 paste 命令交替输出
paste -d '\n' $file1 $file2
正常文件,正确输出
巨大文件,持续输出直到完成后停止
空文件,无输出