设计了网站首页,做旅游网站都需要的调查,seo网站提交,长沙黄花机场公众号fopen(test.txt,a,encodingutf-8)#f.truncate()#截断#xff0c;不指定将清空所有内容f.truncate(5)#从头开始截断#xff0c;截断5个字符 注#xff1a;使用f.seek()改变光标位置不顶用f.close()fopen(yesterday,r,encodingutf-8)#读写文件print(f.readline())print(f.read…fopen(test.txt,a,encodingutf-8)#f.truncate()#截断不指定将清空所有内容f.truncate(5)#从头开始截断截断5个字符 注使用f.seek()改变光标位置不顶用f.close()fopen(yesterday,r,encodingutf-8)#读写文件print(f.readline())print(f.readline())print(f.readline())#打印第三行f.write(----------------没办法没有写在第三行与光标位置无关只能写在最后----------------)print(f.readline())#照常打印第四行\f.close()fopen(yyy,w,encodingutf-8)#写读创建一个文件再往里边写 其实没啥用print(f.readline())#读不到东西print(f.readline())#读不到东西print(f.readline())#读不到东西f.write(----------------写到文件中了----------------)f.close()#1 yyy文件中原始内容# YESTERDAY ONCE MORE# 2 When I was young Id listen to the radio 当年少时,我爱听收音机# 3 Waiting for my favorite songs 等待我最喜爱的歌# 4 When they played Id sing along, 当播放后,我喜欢一个人唱# 5 It make me smile 这让我开心的笑了# 6 Those were such happy times 像这样快乐的日子# 7 and not so long ago 没有多久# 8 How I wondered where theyd gone. 我想知道他们去了哪里# 9 But theyre back again 但他们再次回来# 10 just like a long lost friend 像失去很久的朋友# 11 All the songs I love so well 所有的歌,我是这么的喜欢# 12 Every shalala shalala# 13 every wowo wowo# 14 still shines. 依然闪亮# 15 Every shing-a-ling-a-ling shing-a-ling-a-lingf open(yesterday,a,encodingutf-8)#a同aprint(f.readline())#读不出来f.close()fopen(yesterday,rb)#二进制文件读,网络传输中使用print(f.readline())print(f.readline())print(f.readline())f.close()fopen(zzz,wb)#二进制文件写f.write(终于要学完这一章了.encode())f.close()f open(yesterday,rU,encodingutf-8)#rU同rU,可以将\r \n \r\n自动转化成\n (目的使文件在Linux和Windows上通用)
