pytho学习

python tip

1. 迭代一个数组：

   array = [1, 2, 3, 4, 5]  # or whatever
   
   for i in range(len(array)):
       # Do something with 'i'.

这是相当笨拙的，更干净简洁的做法是:

array = [1, 2, 3, 4, 5]  # or whatever

for i, e in enumerate(array):
    # Do something with index 'i' and its corresponding element 'e'.

1. 序列数组

   zeroes = [0] * 100
   #会得到一个包含100个0的列表

2. 读取文件,以及写入文件内容的时候

   try:
   	#追加的话，用a，重写里面内容，用w或者wb
   	f = open('E:/study/python/test.text', 'a');
   	print(f.write('This is add line!'))
   except Exception as e:
   	raise e
   finally:
   	f.close();

3. 调用os模块

   #在导入os模块之后。获取绝对路径时abspath('.'),括号里面的.要写
   os.path.abspath('.')

4. 发送邮件

   from email.mime.text import MIMEText
   from email.header import Header
   msg = MIMEText('Hello, send myPython..', 'plain', 'utf-8');
   
   # 下面三个要写，不写的话会报错
   msg['From'] = 'zhoufa163537@163.com <zhoufa163537@163.com>'
   msg['Subject'] = Header(u'测试py', 'utf8').encode()
   msg['To'] = u'**<602512691@qq.com>'
   
   print(msg.as_string());
   # from_add = input("From:");
   from_add = 'zhoufa163537@163.com';
   psd = '*****';
   # 输入收件人地址:
   to_addr = '602512691@qq.com';
   # 输入SMTP服务器地址:
   smtp_server = 'smtp.163.com';
   
   import smtplib
   server =  smtplib.SMTP(smtp_server, 25);
   server.set_debuglevel(1);
   server.login(from_add, psd);
   server.sendmail(from_add, [to_addr], msg.as_string());
   server.quit();