""" pass def count(self, sub, start=None, end=None): # real signature unknown; restored from __doc__ """ S.count(sub[, start[, end]]) -> int .count(sub[, start[, end]]返回子字符串sub in不重叠出现的次数 字符串(开始:结束)。可选参数start和end是用切片表示法解释。 """ return...
54 55 """ 56 return (sep or ' ').join(x.capitalize() for x in s.split(sep)) 57 58 59 # Construct a translation string 60 _idmapL = None 61 def maketrans(fromstr, tostr): 62 """maketrans(frm, to) -> string 63 64 Return a translation table (a string of 256 bytes long) ...
居中:center(width[, fillchar]),源字符串位于中间,扩充字符在两边 居左:ljust(width[, fillchar]),源字符串位于左边,扩充字符在字符串的右边 居右:rjust(width[, fillchar]),源字符串位于右边,扩充字符在字符串的左边 注意,填充字符fillchar是可选的,默认为空格,可更改为任意字符。示例代码如下: import st...
1 """A collection of string operations (most are no longer used). 2 3 Warning: most of the code you see here isn't normally used nowadays. 4 Beginning with Python 1.6, many of these functions are implemented as 5 methods on the standard string object. They used to be implemented ...
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...
{0:x}; oct: {0:o}; bin: {0:b}".format(42) 'int: 42; hex: 2a; oct: 52; bin: 101010' >>> # with 0x, 0o, or 0b as prefix: >>> "int: {0:d}; hex: {0:#x}; oct: {0:#o}; bin: {0:#b}".format(42) 'int: 42; hex: 0x2a; oct: 0o52; bin: 0b101010...
local scope will change global variable due to same memory used input: importnumpyasnpdeftest(a):a[0]=np.nanm=[1,2,3]test(m)print(m) output: [nan, 2, 3] Note python has this really weird error if you define local variable in a function same name as the global variable, program...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 sql="""CREATE TABLE IF NOT EXISTS Offline_building_history_new( ID int(8) not null auto_increment COMMENT '序号', OFF_TIME date not null COMMENT '掉线记录时间', BUILD_ID VARCHAR (40) NOT NULL COMMENT '建筑编号', BUILD_NAME VARCHAR (...
int .count(sub[, start[, end]]返回子字符串sub in不重叠出现的次数 字符串(开始:结束)。可选参数start和end是用切片表示法解释。 """ return 0 def encode(self, *args, **kwargs): # real signature unknown """ Encode the string using the codec registered for encoding. ...
to_csv bool at clip radd to_markdown value_counts first isna between_time replace sample idxmin div iloc add_suffix pipe to_sql items max rsub flags sem to_string to_excel prod fillna backfill align pct_change expanding nsmallest append attrs rmod bfill ndim rank floordiv unstack groupby ...