2. in Python 2.6 on up you can use the new format() method on strings: >>>'{a}'.format(a = ‘spam’) 'spam’ 3. using string >>>import string >>>template = string.Template(“$scheme://$host:$port/$route#$fragment”) >>>template.substitute(scheme = ”http”, host = ”goog...
Perform a string formatting operation. The string on which this method is called can contain literal text or replacement fields delimited by braces {}. Each replacement field contains either the numeric index of a positional argument, or the name of a keyword argument. Returns a copy of the st...
public class Main { public static void main(String[] args) { double number = 3.14159;System.out.printf("%.2f%n", number);} } 在Java中，”%.2f“同样表示浮点数保留两位小数。4. C++:#include <iostream> #include <iomanip> using namespace std;int main() { double number = 3.14159;cou...
'hello',20,9.3)'|hello | 9.3|'>>>参考资料：http://docs.python.org/library/stdtypes.html#string-formatting-operations声明在字符串参数前面需要一个长度参数例如:'[
/usr/bin/python# -*- coding: utf-8 -*-''' help(str.format) Help on method_descriptor: format(...) S.format(*args, **kwargs) -> string Return a formatted version of S, using substitutions from args and kwargs. The substitutions are identified by braces ('{' and '}')....
Inside the template string, person's name and age are accessed using [name] and [age] respectively. There's an easier way to format dictionaries in Python using str.format(**mapping). # define Person dictionary person = {'age': 23, 'name': 'Adam'} # format age print("{name}'s ag...
一、STRING FORMAT METHOD 在编程语言如Python中,format()是一个强大且灵活的字符串方法。它可以通过括号和对象以及一些可选格式说明符的组合,来构造复杂且动态的字符串表达式。这对于生成格式良好的输出尤其有用。 FORMAT的使用 用户可以采用"{}".format(value)的形式,在字符串中插入变量或者表达式的值。这不仅限于...
Python的locale模块提供了一种更强大的方式来格式化数字,包括千分位表示。locale模块可以根据不同的本地化设置来格式化数字,可以根据需要进行更多的自定义。以下是使用locale模块将数字转换为千分位形式的示例代码: importlocale num=1234567.89formatted_num=locale.format_string('%d',num,grouping=True)print(formatted_nu...
[C#] 用内插字符串取代string.Format() 自从有了编程这门职业,开发者就需要把计算机里面所保存的信息转换成更便于人类阅读的格式。C#语言中的相关API可以追溯到几十年前所诞生的C语言,但是这些老的习惯现在应该改变,因为C#6.0提供了内插字符串(Interpolated String)这项新的功能可以用来更好地设置字符串的格式。
Python print(f"On the Moon, you would weigh about{round(100/6,1)}% of your weight on Earth.") Output:On the Moon, you would weigh about 16.7% of your weight on Earth. Using an expression doesn't require a function call. Any of the string methods are valid as well. For example,...