deflimit_string_length(string,length):return"{:.{}s}".format(string,length)# 示例用法text="这是一个很长的字符串,需要进行限制长度。"limit_text=limit_string_length(text,10)print(limit_text)# 输出:这是一个很长的字符 1. 2. 3. 4. 5. 6. 7. 在上面的代码中,我们使用了format方法来格式化...
Write a Python program to format a specified string and limit the length of a string.Sample Solution:Python Code:# Define a string containing a numeric value. str_num = "1234567890" # Print the original string. print("Original string:", str_num) # Print the first 6 characters of the st...
{ "Modulo operator": "'Name: %s Age: %s' % (name, age)", ".format() method": "'Name: {} Age: {}'.format(name, age)", "f_string": "f'Name: {name} Age: {age}'", } def run_performance_test(strings): max_length = len(max(strings, key=len)) for tool, string in ...
Return a centered string of length width.-->返回长度为宽度的居中字符串。 Padding is done using the specified fill character (default is a space).-->填充是使用指定的填充字符完成的(默认为空格) ''' 1. 2. 3. 4. 5. print('abc'.center(9,'-')) 1. 4.count()方法 ''' count() 方法...
12. String Slicing To extract a substring using slicing: s = "slice me" sub = s[2:7] # From 3rd to 7th character print(sub) 13. String Length with len To get the length of a string: s = "length" print(len(s)) # 6 14. Multiline Strings To work with strings spanning multiple...
String Method : str.capitalize() Return a copy of the string with its first character capitalized and the rest lowercased. 对于一个字符串, 第一个字符为大写, 其余为小写。 str.center(width[, fillchar]) Return centered in a string of length width. ...
%作为占位符{}作为占位符’'.format()f‘我叫%s,今年%d岁了’%s占了一个字符串%d占了一个整数 s = "python" <填充><对齐><宽度> <,><.精度><类型>,其中,逗号(,)用于显示数字类型的千分位分隔符。 <.精度>有小数点(.)开头。 # 格式化字符串name = '张三'age = 20print('我叫%s,今年%d岁了' ...
此外,在第二版中,我采用了 Python 3.6 引入的f-string语法,它比旧的字符串格式化表示法(str.format()方法和%运算符)更具可读性,通常也更方便。 提示 仍然使用my_fmt.format()的一个原因是,当my_fmt的定义必须在代码中与格式化操作需要发生的地方不同的位置时。例如,当my_fmt有多行并且最好在常量中定义时...
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). ...
-1 (the default value) means no limit. Splits are done starting at the end of the string and working to the front. 返回字符串中的单词列表,使用sep作为分隔符字符串。 sep 用来分割字符串的分隔符。 None(默认值)表示根据任何空格进行分割,并从结果中丢弃空字符串。