学习Python已有数日,这是今天的战利品:
1.创建文本(createtext.py)
程序如下:
#create text file
import os ls = os.linesep
print("******create file******")
#get filename while True: fname = input("enter your file name:") if os.path.exists(fname): print("error: '%s' already exists"%fname) else: break
#get file content lines all = [] print("\nEnter lines ('.'by itself to quit).\n")
#loop until user terminates input while True: entry = input('> ') if entry == '.': break else: all.append(entry)
#write lines to file with proper line-ending fobj = open(fname, 'w') fobj.writelines(['%s%s' %(x,ls) for x in all]) fobj.close() print ('Done')
程序验证:
文本查看器查看:
2.读取文本文件(readtext.py)
程序如下:
#read and dislay text file print("read and dislay text file")
fname = input("Enter filename:") print #display a empty line
#attempt to open file for reading try: fobj = open(fname, 'r') except IOError: print("file open error:") else: #display contents print('_ '*10,) for eachLine in fobj: print(eachLine,end = '') #end参数,默认为'\n' fobj.close() print('_ '*10) print("Done")
程序验证:
Let me go on...