@echo off&setlocal enabledelayedexpansion
sort data.txt /o data1.txt
for /f "tokens=1-2" %%a in (quhao.txt) do set %%b=%%a

::\\取第一个电话号码
set /p num=<data1.txt
set /a num=num
::\\\\\\\
(
for /f "tokens=1-2" %%a in (data1.txt) do (
  if !num! neq %%a (echo;!num! !未知!)&(set var=)
  if "!var!" neq "%%b" (
    echo;%%a !%%b!
    set var=%%b
  )  
  set /a num=%%a+1
)
)>结果.txt
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