defmy_function():a=10b=20# 修正缩进,与上一行保持一致returna+b 在这个修正后的例子中,所有代码行的缩进都是一致的,因此不会触发缩进错误。 五、注意事项 保持一致的缩进风格:在编写Python代码时,应始终使用空格或制表符中的一种来进行缩进,并且在整个项目中保持一致。 使用IDE或文本编辑器的缩进辅助功能:大多数现代
419 420 """ 421 return _long(s, base) 422 423 424 # Left-justify a string 425 def ljust(s, width, *args): 426 """ljust(s, width[, fillchar]) -> string 427 428 Return a left-justified version of s, in a field of the 429 specified width, padded with spaces as needed. The...
Adding left padding to a string means adding a given character at the start of a string to make it of the specified length. Left padding, outside of simple formatting and alignment reasons can be really useful when naming files that start with a number generated in a sequence. For example,...
a nice string representation of the object. | If the argument is a string, the return value is the same object. | | Method resolution order: | str | basestring | object | | Methods defined here: | | __add__(...) | x.__add__(y) <==> x+y | | __contains__(...) | x...
The string whose method is called is inserted in between each given string. The result is returned as a new string. Example: '.'.join(['ab', 'pq', 'rs']) -> 'ab.pq.rs' 连接任意数量的字符串。 调用其方法的字符串被插入到每个给定字符串之间。 结果以新字符串的形式返回。 例如:“。
string 242 243 Return a copy of the string s with upper case characters 244 converted to lowercase and vice versa. 245 246 """ 247 return s.swapcase() 248 249 # Strip leading and trailing tabs and spaces 250 def strip(s, chars=None): 251 """strip(s [,chars]) -> string 252 253...
# 处理列名 import re ''' 更多Python学习资料以及源码教程资料,可以加群821460695 免费获取 ''' # 匹配字符串中任意空白字符的正则表达式 space = re.compile(r"\s+") def fix_string_spaces(columnsToFix): ''' 将列名中的空白字符转变成下划线 ''' tempColumnNames = [] # 保存处理后的列名 # 循环...
76 """ 77 return False 78 79 def expandtabs(self, tabsize=None): 80 """ 将tab转换成空格,默认一个tab转换成8个空格 """ 81 """ 82 S.expandtabs([tabsize]) -> string 83 84 Return a copy of S where all tab characters are expanded using spaces. 85 If tabsize is not given, a ...
Encode the string using the codec registered for encoding. encoding The encoding in which to encode the string. errors The error handling scheme to use for encoding errors. The default is 'strict' meaning that encoding errors raise a UnicodeEncodeError. Other possible values are 'ignore', 'replac...
1)可以打印出和SMTP服务器交互的所有信息stp.set_debuglevel(1)# 登录邮箱，传递参数1：邮箱地址，参数2：邮箱授权码stp.login(mail_sender,mail_license)# 发送邮件，传递参数1：发件人邮箱地址，参数2：收件人邮箱地址，参数3：把邮件内容格式改为strstp.sendmail(mail_sender, mail_receivers, mm.as_string()...