123456789
987654321
000000001
000010001
098765432
100000001
………………
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@echo off&setlocal enabledelayedexpansion
for /l %%a in (1,1,10) do (
	for /l %%b in (1,1,1000000) do (
	set ran=!random!!random!!random!!random!
	echo !ran:~-9!
	)
)>%%a.txt
pause
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# python 3.5.1
# coding:utf-8
# 功能:随机9位数字前面补0，无重复

import random, os, time,traceback

start_time = time.time()
num = list(range(10000000))
random.shuffle(num)
a = 1
wFile = open("%s/%d.txt" % (os.path.split(__file__)[0],a ), 'w')
print("正在写入第%d个文件" % a)
try:
    for i in range(len(num)):
        num[i] = "%09d" % num[i]
        if  i / 1000000 >= a:
            a += 1
            wFile.close()
            wFile = open("%s/%d.txt" % (os.path.split(__file__)[0], a), 'w')
            print("正在写入第%d个文件" % a)
        wFile.write(num[i] + "\n")
except:
    traceback.print_exc()
finally:
    wFile.close()
    print("耗时：%d秒" % (time.time() - start_time))
    input("按回车退出")
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@shuf -n 10000000 -i 1000000000-2000000000|split -l 1000000
@sed -i "s/^.//g" x*
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"""
如何随机生成1到999999999之间的数字.py
http://bbs.bathome.net/thread-39410-1-1.html
2016年2月19日 01:56:51 codegay
"""

import time
import random
start=time.time()
print("运行中..."*3)

txt={str(random.randint(1000000001,2000000000))[1:]+"\n" for r in range(10000000)}#集合解析生成一千万随机数并去重。会导致比列表解析慢上7秒左右。运行耗时： 44
print(len(txt))
with open("sj.txt","a+") as f:
    f.writelines(txt)

end=time.time()
pt=end-start
print("运行耗时：",pt)
try:
    input("按回车退出")
except SyntaxError:
    pass
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#lang racket

(require 2htdp/batch-io)
(letrec ([main (lambda (l t)
                 (when (<= 10 t)
                   (printf "writing file ~v.txt~n" t)
                   (call-with-output-file (string-append (number->string t) ".txt")
                     (lambda (output-port)
                       (for-each (lambda (x)
                                   (fprintf output-port "~a~n" (substring (number->string x) 1)))
                                 (take l 1000000))))
                   (main (drop l 1000000) (+ t 1))))])
  (main (shuffle (range 1000000000 2000000000)) 1))
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