由于python中的for循环不像C++这么灵活,因此该用枚举法实现该算法: C="abcdefhe" D="cdefghe" m=0 n=len(C) E=[] b=0 while(m<n): i=n-m while(i>=0): E.append(C[m:m+i]) i-=1 m+=1 for x in E: a=0 if x in D: a=len(x) c=E.index(x) if a > b:#保存符合要求的最长字符串长度和地址 b=a
import os dir = input('Please input the file dir:')#提示输入文件路径 while not os.path.exists(dir):#判断文件是否存在 dir = input('Cann\'t find the file,Please input the correct file dir:') data = open(dir,'r')#打开文件 buf = []#缓存文件中数据的变量 for lines in data: value = line
练习VBA Sub 填报入库单() Dim basedb As String, cpdb As String, wb As Workbook, ws As Worksheet, curWs As Worksheet, v As String On Error Resume Next Application.ScreenUpdating = False Application.DisplayAlerts = False basedb = "D:\基础库\分析数据.xlsx" cpdb =
with open(fileName,'w',newline='') as f: self.fileNames = ['timestamp','elapsedtime'] writer = csv.DictWriter(f,fieldnames = self.fileNames) for li in self.allData: #分行读取 writer.writerow({'timestamp':li[0],'elapsedtime':li[1]})#以字典格式写入
