Strings can beconcatenatedto build longer strings using the plus sign and also they can bemultipliedby a number, which results in the continuous repetition of the string as many times as the number indicates. A
或者前面三个双引号，后面三个双引号（前后呼应，成双成对，即可以前面是单引号加双引号，也可以是其他的，但是后面必须与之对称）（2） Long StringWhen the string variable is too long, we can add a backslash at the end of the line to indicate continuation. Or the first three double quotes, foll...
In addition, variables in Python do not directly store the value, but store the memory address or variable type of the value, so when a variable is created, the variable can be accessed directly using the variable name. For variable naming, it is usually composed of letters, numbers, and ...
Let’s look at a couple of common sequence operations on strings. 让我先定义一个字符串。 Let me first define a string. 让我们来看看“Python” Let’s just go with "Python." 同样,如果我想知道我的字符串有多长,我可以使用len函数。 Again, if I wanted to find out how long is my string,...
String Methods List/Array Methods Dictionary Methods Tuple Methods Set Methods File Methods Python Keywords Python Exceptions Python Glossary Random Module Requests Module Math Module CMath Module Download Python Download Python from the official Python web site:https://python.org ...
Assigning a string to a variable is done with the variable name followed by an equal sign and the string:Example a = "Hello"print(a) Try it Yourself » Multiline StringsYou can assign a multiline string to a variable by using three quotes:...
# This is a string variable myInteger = 5 # This is an integer value myFloat = 5.5 #This is a floating-point value myList = [ 1, 2, 3, 4, 5] #This is a list of integers myDict = { 'name' : 'Python User', 'value' : 75 } #This is a dictionary with keys representing ...
f-string 输出字符串举例: print(f'Hello World') #output: Hello World 2.1.1使用 f-string连接变量 如果希望在字符串文本中包含打印变量,只需将变量括在左大括号和右大括号中 英文:If you want to include printing a variable inside your string literal, you just need to enclose your variable within ...
At some point, this variable can end up holding an empty string. If that’s the case, then you’d like the variable to hold a default county name. You can also do this with the or operator: Python >>> country = "Canada" >>> default_country = "United States" >>> country or ...
When we explicitly passed [] to some_func as the argument, the default value of the default_arg variable was not used, so the function returned as expected. def some_func(default_arg=[]): default_arg.append("some_string") return default_arg Output: >>> some_func.__defaults__ #This...