Python中布林值與字串連線的方法

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可以參考這篇文章學習將布林值與字串連線的不同方法。所有不同的方法都可以在不同的情況下使用。

將布林值與字串連線的不同方法

字串函式

讓我們透過一個例子來更好地理解它：

示例

# Case 1
value_of_boolean = True # The value of Boolean is given as input to the function
final_string = "The value of the boolean will be displayed as: " + str(value_of_boolean) # The Boolean is converted into string with the help of str function
print(final_string) 

# Note: In Boolean, there are only two types of outputs, that is, True & False

# Case 2
value_of_boolean = False # The value of Boolean is given as input to the function
final_string = "The value of the boolean will be displayed as: " + str(value_of_boolean) # The Boolean is converted into string with the help of str function
print(final_string) 

輸出

上述示例的輸出如下：

The value of the boolean will be displayed as: True # Output of case-1
The value of the boolean will be displayed as: False # Output of case-2

格式化字串字面量

讓我們透過一個例子來更好地理解它：

示例

# Case 1
value_of_boolean = True # The value of Boolean is given as input to the function
final_string = f"The value of the boolean will be displayed as: {value_of_boolean}" # The value of Boolean is directly added to the string with the help of curly brackets
print(final_string) 

# Note: In Boolean, there are only two types of outputs, that is, True & False

# Case 2
value_of_boolean = False # The value of Boolean is given as input to the function
final_string = f"The value of the boolean will be displayed as: {value_of_boolean}" # The value of Boolean is directly added to the string with the help of curly brackets
print(final_string) 

輸出

上述示例的輸出如下：

The value of the boolean will be displayed as: True # Output of case-1
The value of the boolean will be displayed as: False # Output of case-2

已棄用的方法

我們很少使用這種技術。在這種方法中，布林值透過 % 符號與字串連線。讓我們透過一個例子來更好地理解它：

示例

# Case 1
value_of_boolean = True # The value of Boolean is given as input to the function
result = "The value of the boolean will be displayed as: %s" % value_of_boolean # With the help of % symbol the Boolean is linked with the string
print(result) 

# Note: In Boolean, there are only two types of outputs, that is, True & False

# Case 2
value_of_boolean = False # The value of Boolean is given as input to the function
final_string = "The value of the boolean will be displayed as: %s" % value_of_boolean # With the help of % symbol the Boolean is linked with the string
print(final_string) 

#Note: This is a very old method and might not run in some of the versions of pythons

輸出

上述示例的輸出如下：

The value of the boolean will be displayed as: True 
# Output of case-1 The value of the boolean will be displayed as: False # Output of case-2

列表中的join函式

當有多個字串以列表的形式存在，並且需要將這些字串與布林值連線時，可以使用此方法。讓我們透過一個例子來更好地理解它：

示例

# Case 1
value_of_boolean = True # The value of Boolean is given as input to the function
list_of_strings = ["The", "value", "of", "the", "boolean", "will", "be", "displayed", "as:", str(value_of_boolean)] # A list of strings is connected with Boolean with the help of str function
final_string = " ".join(list_of_strings) # All the different strings are combined into one common string
print(final_string) 

# Note: In Boolean, there are only two types of outputs, that is, True & False

# Case 2
value_of_boolean = False # The value of Boolean is given as input to the function
list_of_strings = ["The", "value", "of", "the", "boolean", "will", "be", "displayed", "as:", str(value_of_boolean)] # A list of strings is connected with Boolean with the help of str function
final_string = " ".join(list_of_strings) # All the different strings are combined into one common string
print(final_string) 

#Note: This method is used only in the case of many different strings

輸出

上述示例的輸出如下：

The value of the boolean will be displayed as: True # Output of case-1
The value of the boolean will be displayed as: False # Output of case-2

format方法

在這種方法中，我們使用format函式將布林值與字串連線。讓我們透過一個例子來更好地理解它

示例

# Case 1
value_of_boolean = True # The value of Boolean is given as input to the function
final_string = "The value of the boolean will be displayed as: {}".format
(value_of_boolean) # The Boolean is linked with the string with the help of format function 
print(final_string) 

# Note: In boolean, there are only two types of outputs, that is, True & False

# Case 2
value_of_boolean = False # The value of Boolean is given as input to the function
final_string = "The value of the boolean will be displayed as: {}".format(value_of_boolean)# The Boolean is linked with the string with the help of format function 
print(final_string) 

輸出

上述示例的輸出如下：

The value of the boolean will be displayed as: True # Output of case-1
The value of the boolean will be displayed as: False # Output of case-2

結論

上文描述了所有可以用來將布林值與字串連線的不同方法。根據應用領域和易用性，可以選擇上述任何一種方法。