Question

批处理 在a.txt中查找字符串 "abc",并将 从abc之后的5行,输出到b.txt

批处理 在a.txt中查找字符串 "abc",并将 从abc之后的5行,输出到b.txt
------比如a.txt内容为:------
1
12
123
1234
12345
12345abc6
1234567
123445678
1234567890
12
-----a.txt内容结束------
我要查找 abc ,然后将abc之后的5行保存到b.txt
就是说我要的达到的目的是:执行这个批处理以后.b.txt里面的内容是:
abc6
1234567
123445678
1234567890
12

答对的,全部分都奉送!

Answer 1

///如果文本内容很大，建议就按行读取，如果文本内容小，建议读取文本后//然后截取
StringBulider bulider=new StringBulider();
bool flag=false;
int row=5;

using (Stream stream=New FileStream()){
using(StringReader reader = new StringReader(stream))
{
string line=string.Empty;
while(line=reader.ReadLine()!=null)
{
if(!flag&&line.Contains("abc"))
{
flag=true;
}
else
{
bulider.AppendLine(line);
--row;
if(row==0) break;
}
}

}
}

string result=bulider.ToString();

Answer 2

批处理的，试下吧
-------------------------
@echo off
setlocal enabledelayedexpansion
for /f "tokens=1,2* delims=:a" %%i in ('findstr /n "abc" a.txt') do set num=%%i&echo a%%k>b.txt
for /f "skip=%num% delims=" %%i in ('findstr ".*" a.txt') do (
set /a num1+=1
if !num1! gtr 4 exit
echo.%%i>>b.txt
)

Answer 3

二楼的强悍，正解

Answer 4

S

Answer 5

@echo off >b.txt
setlocal enabledelayedexpansion
for /f "tokens=1* delims=:" %%i in ('findstr /n "abc" a.txt') do (
set/a n+=1&set ln!n!=%%i&set "str!n!=%%j")
if not defined n echo 没有找到"abc"！&goto end
set/a m=1,l=0,lln=0,lnum=%ln1%
for /f "tokens=1* delims=:" %%i in ('findstr /n ".*" a.txt') do (
if !l! gtr 0 (if !l! leq 5 (if %%i lss !lln! (
if "%%j"=="" (echo.>>b.txt) else >>b.txt echo %%j
set/a l+=1) ) else set l=0)
if !lnum!==%%i (
set l=1&set /a m+=1
call set lnum=%%ln!m!%%
set "tp=%%j"&set "tp=!tp:abc=▓!"
for /f "tokens=1* delims=▓" %%k in ("@!tp!") do echo abc%%l >>b.txt
if "!lnum!"=="" (call set/a lln=%%ln!n!%%+6) else set lln=!lnum!
))
:end
start b.txt