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def suiji():#随机产生数个英文字符串
import random
letter = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
l=[]
n=0
while n<20:
x=random.randint(0,51)
l.append(letter[x])
n+=1
n=0
while n<20:
str2 = ''
while len(str2)<2:
x=random.randint(0,51)
str2+=letter[x]
l.append(str2)
n+=1
n=0
while n<20:
str3 = ''
while len(str3)<3:
x=random.randint(0,51)
str3+=letter[x]
l.append(str3)
n+=1
n=0
while n<20:
str4 = ''
while len(str4)<4:
x=random.randint(0,51)
str4+=letter[x]
l.append(str4)
n+=1
n=0
while n<20:
str5 = ''
while len(str5)<5:
x=random.randint(0,51)
str5+=letter[x]
l.append(str5)
n+=1
n=0
while n<20:
str6 = ''
while len(str6)<6:
x=random.randint(0,51)
str6+=letter[x]
l.append(str6)
n+=1
n=0
while n<20:
str7 = ''
while len(str7)<7:
x=random.randint(0,51)
str7+=letter[x]
l.append(str7)
n+=1
n=0
while n<20:
str8 = ''
while len(str8)<8:
x=random.randint(0,51)
str8+=letter[x]
l.append(str8)
n+=1
n=0
while n<20:
str9 = ''
while len(str9)<9:
x=random.randint(0,51)
str9+=letter[x]
l.append(str9)
n+=1
return l
file = open("C:/Users/刘仕豪/Desktop/a.txt",'w')
‘’’
图3.1随机创建好的txt文件的一部分
‘’’
ranstr = suiji()
for s in ranstr:
file.write(s)
file.write('\n')
file.close()
#先随机创建一个有许多字符串的txt文档
#下面才是排序字符串，上面只是准备工作
file2 = open(r"C:/Users/刘仕豪/Desktop/a.txt")
strs = []
for line in file2:
strs.append(line)
#打开刚刚的文件，将刚刚文件里的字符串引入一个列表
for i in range(len(strs)-1):
for j in range(len(strs)-i):
if (j<len(strs)-i-1):
if strs[j]>strs[j+1]:
strs[j],strs[j+1]=strs[j+1],strs[j]
file3 = open("C:/Users/刘仕豪/Desktop/finished.txt",'w')
#将排序好的txt生成一个新的文件
‘’’
图3.2排序完成效果的一部分
‘’’
for k in strs:
file3.write(k)
file3.write('\n')
file2.close()
file3.close()
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