简单来说就是对字符串S移除deletechars包含的字符,然后保留下来的字符按照table里面的字符映射关系映射(比如a变成A,后面会解释到)。那个莫名其妙的"which must be a string of length 256"就不用深究了,反正table就是由string.maketrans方法生成的,对于string.maketrans方法,这里有
示例代码如下: defdelete_character(string,target):index=string.find(target)ifindex!=-1:result=string[:index]else:result=stringreturnresult 1. 2. 3. 4. 5. 6. 7. 示例 示例1:删除字符串中逗号后面的字符 假设我们有一个字符串"Hello, World!",我们想要删除逗号后面的所有字符。我们可以使用上述的解...
S.ljust(width[, fillchar]) -> string Return S left-justified in a string of length width. Padding is done using the specified fill character (default is a space). """ s.ljust(10,'-') #左对齐,一共10个字符的位置,用空格补充空位置 print s.ljust(10,'-') #右对齐 print s.rjust(1...
insert [in'sə:t] 插入 delete [di'li:t] 删除 replace [ri'pleis] 代替,取代,更换 update [ ʌp'deit] 更新 create [ kri'eit ] 创造,创作 builder ['bildə] 构建器 char [tʃɑ:] 字符型 character ['kærəktə] 字符 int [int] 整型 reverse [ ri'və:s ] 反转,翻转...
capitalize() -> string Return a copy of the string S with only its first character capitalized. """ return "" def center(self, width, fillchar=None): """ 内容居中,width:总长度;fillchar:空白处填充内容,默认无 """ """ S.center(width[, fillchar]) -> string Return S centered in a...
7、character :字符 二、字符串的操作 user:用户 name:姓名/名称 attribute:字段/属性 value:值 key:键 三、重复/转换/替换/原始字符串 upper:上面 lower:下面 capitalize:用大写字母写或印刷 title:标题 replace:替换 old:旧的 new:新的 count:计数 ...
Return a copy of the string with only its first character capitalized. For 8-bit strings, this method is locale-dependent. str.center(width[, fillchar]) Return centered in a string of length width. Padding is done using the specified fillchar (default is a space). ...
2. Count character frequency in a string. Write a Python program to count the number of characters (character frequency) in a string. Sample String : google.com' Expected Result : {'g': 2, 'o': 3, 'l': 1, 'e': 1, '.': 1, 'c': 1, 'm': 1} ...
python: delete success! python: update success! 语文 英语-新课标 体育 python: select success! [root@RS1821t pytest]# 3.2 绑定变量示例 Python 接口绑定变量示例程序 py_bind.py 如下: #!/usr/bin/python#coding:utf-8importdmPythontry: conn = dmPython.connect(user='SYSDBA', password=***, serv...
deletechars: list of characters to be removed from the source string. Return Value: It returns a translated copy of the string. 简单来说就是对字符串S移除deletechars包含的字符,然后保留下来的字符按照table里面的字符映射关系映射(比如a变成A)。