The string is 441 never truncated. If specified the fillchar is used instead of spaces. 442 443 """ 444 return s.rjust(width, *args) 445 446 # Center a string 447 def center(s, width, *args): 448 """center(s, width[, fillchar]) -> string 449 450 Return a center version of...
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...
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 tab size of 8 characters is assumed. 86 """ 87 return "" 88 89 def find(self, sub, start=None, end=None): 90 """ 寻找子序列位置,...
Pad a numeric string with zeros on the left, to fill a field of the given width. The string is never truncated. """ pass def __add__(self, *args, **kwargs): # real signature unknown """ Return self+value. """ pass def __contains__(self, *args, **kwargs): # real signatu...
String indexing in Python is zero-based: the first character in the string has index 0, the next has index 1, and so on. The index of the last character will be the length of the string minus one. Python中的字符串索引是从零开始的:字符串中的第一个字符的索引为0 ,下一个字符的索引为...
# 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...
| S.expandtabs([tabsize]) -> string | '''将字符串里的制表符(一般用tab建输入,也可以手动使用特殊字符 \t )转换成空格,默认一个制表符转换成8个空格,也可以指定个数(tabsize),并返回一个转换后的副本''' | Return a copy of S where all tab characters are expanded using spaces. ...
When your Python application uses a class in Tkinter, e.g., to create a widget, the tkinter module first assembles a Tcl/Tk command string. It passes that Tcl command string to an internal _tkinter binary module, which then calls the Tcl interpreter to evaluate it. The Tcl interpreter wi...
18、erwisestring.expandtabs(tabsize=8) Expands tabs in string to multiple spaces;defaults to 8 spaces per tab if tabsize not providedstring.find(str, beg=0 end=len(string) Determines if str occurs in string, or in asubstring of string if starting index beg and ending index end are given...