python打印多个变量_在Python中打印多个变量

旧城等待， 2023-03-05 11:57 104阅读 0赞

python打印多个变量

Like other programming languages, In python also, we can define and **print the multiple variables**. Here, we see how can we print the single and multiple variables using the *print()* function?

像其他编程语言一样，在python中，我们也可以定义和**打印多个变量** 。 在这里，我们看到如何使用*print()*函数打印单个和多个变量？

In Python, single variable can be printed like this,

在Python中，可以这样打印单个变量，

print(variable)

**Example:**

**例：**

# Python program to print single variable
    name = "Mike"
    age = 21
    country = "USA"
    
    # printing variables one by one
    print(name)
    print(age)
    print(country)
    print() # prints a newline
    
    # printing variables one by one
    # with messages
    print("Name:", name)
    print("Age:", age)
    print("Country:", country)

**Output:**

**输出：**

Mike
    21
    USA
    
    Name: Mike
    Age: 21
    Country: USA

## 打印多个变量 **(**Printing multiple variables**)** ##

There are following methods to print multiple variables,

有以下方法可以打印多个变量，

*  **Method 1**: Passing multiple variables as arguments separating them by commas
    
    **方法1** ：传递多个变量作为以逗号分隔它们的参数
 *  **Method 2**: Using *format()* method with curly braces (\{\})
    
    **方法2** ：使用带有大括号(\{\})的*format()*方法
 *  **Method 3**: Using *format()* method with numbers in curly braces (\{0\})
    
    **方法3** ：将*format()*方法与大括号(\{0\})中的数字一起使用
 *  **Method 4**: Using *format()* method with explicit name in curly braces (\{v\})
    
    **方法4** ：在大括号(\{v\})中使用具有显式名称的*format()*方法
 *  **Method 5**: Using string concatenation
    
    **方法5** ：使用字符串连接

Let's understand each method in the details.

让我们详细了解每种方法。

**Method 1:**

**方法1：**

To print multiple variables using the *print()* function, we need to provide the variable names as arguments separated by the commas.

要使用*print()*函数打印多个变量，我们需要提供变量名称作为用逗号分隔的参数。

**Note:** *print()* function prints space after the value of each variable, space is the default value of [sep parameter][] – which is an optional parameter in [print() function][print_ function], by using this parameter, we can specify the separator value.

**注意：** *print()*函数在每个变量的值之后打印空格，space是[sep参数][sep parameter]的默认值–这是[print()函数中][print_ function]的可选参数，通过使用此参数，我们可以指定分隔符值。

**Syntax:**

**句法：**

print(variable1, varaible2, variable3, ...)

**Example:**

**例：**

# Python program to print multiple variables
    name = "Mike"
    age = 21
    country = "USA"
    
    # printing variables one by one
    print("Printing normally...")
    print(name, age, country)
    print() # prints a new line
    
    # Printing with comma seprator
    print("Printing with comma seprator...")
    print(name, age, country, sep=',')
    print() # prints a new line
    
    # printing variables with messages
    print("Printing with messages...")
    print("Name:", name, "Age:", age, "Country:", country)

**Output:**

**输出：**

Printing normally...
    Mike 21 USA
    
    Printing with comma seprator...
    Mike,21,USA
    
    Printing with messages...
    Name: Mike Age: 21 Country: USA

**Method 2:**

**方法2：**

By using the *new-style* string formatting (*format()* method), we can also print the multiple variables. Here, we have to specify the curly braces (**\{\})** where we have to print the values and in the *format()* method, provide the multiple variables separated by the commas.

通过使用*新的*字符串格式设置( *format()*方法)，我们还可以打印多个变量。 在这里，我们必须指定花括号( **\{\})** ，在其中我们必须打印值，并在*format()*方法中提供多个用逗号分隔的变量。

**Syntax:**

**句法：**

print("{} {} {}".format(variable1, variable2, variable2)

**Example:**

**例：**

# Python program to print multiple variables
    # using format() method
    
    name = "Mike"
    age = 21
    country = "USA"
    
    print("{} {} {}".format(name, age, country))
    print("Name: {}, Age: {}, Country: {}".format(name, age, country))

**Output:**

**输出：**

Mike 21 USA
    Name: Mike, Age: 21, Country: USA

**Method 3:**

**方法3：**

By using the *new-style* string formatting with *numbers* (*format()* method), we can also print the multiple variables. This is similar to method 2 but here we can use the numbers inside the curly braces (**\{0\}**), it will help for reordering the values.

通过使用带*数字*的*新型*字符串格式设置( *format()*方法)，我们还可以打印多个变量。 这类似于方法2，但是在这里我们可以使用花括号( **\{0\}** )中的数字，这将有助于重新排列值。

**Note:** Number 0 represents the first variable in *format()* method, 1 represents the second, and so on.

**注意：**数字0代表*format()*方法中的第一个变量，数字1代表第二个变量，依此类推。

**Syntax:**

**句法：**

print("{0} {1} {2}".format(variable1, variable2, variable2)

**Example:**

**例：**

# Python program to print multiple variables
    # using format() method with numbers
    
    name = "Mike"
    age = 21
    country = "USA"
    
    print("{0} {1} {2}".format(name, age, country))
    print("Name: {0}, Age: {1}, Country: {2}".format(name, age, country))
    
    print("Country: {2}, Name: {0}, Age: {1}".format(name, age, country))
    
    # printing all values 2-2 times
    print("{0} {0} {1} {1} {2} {2}".format(name, age, country))

**Output:**

**输出：**

Mike 21 USA
    Name: Mike, Age: 21, Country: USA
    Country: USA, Name: Mike, Age: 21
    Mike Mike 21 21 USA USA

**Method 4:**

**方法4：**

By using the *new-style* string formatting with *explicit names* (*format()* method), we can also print the multiple variables. This is similar to method 3 but here we can use the explicit names inside the curly braces (**\{n\}**), it will help for remembering the order and variable names.

通过使用带有*显式名称*的*新型*字符串格式设置( *format()*方法)，我们还可以打印多个变量。 这类似于方法3，但在这里我们可以在花括号( **\{n\}** )中使用显式名称，这将有助于记住顺序和变量名称。

**Syntax:**

**句法：**

print("{v1} {v2} {v3}".format(v1=variable1, v2=variable2, v3=variable2)

**Example:**

**例：**

# Python program to print multiple variables
    # using format() method with explicit names
    
    name = "Mike"
    age = 21
    country = "USA"
    
    print("{n} {a} {c}".format(n=name, a=age, c=country))
    print("Name: {n}, Age: {a}, Country: {c}".format(n=name, a=age, c=country))
    
    print("Country: {c}, Name: {n}, Age: {a}".format(n=name, a=age, c=country))
    
    # printing all values 2-2 times
    print("{n} {n} {a} {a} {c} {c}".format(n=name, a=age, c=country))

**Output:**

**输出：**

Mike 21 USA
    Name: Mike, Age: 21, Country: USA
    Country: USA, Name: Mike, Age: 21
    Mike Mike 21 21 USA USA

**Method 5:**

**方法5：**

We can print multiple variables by concatenating them as a string.

我们可以通过将多个变量串联为字符串来打印多个变量。

**Syntax:**

**句法：**

print(str(variable1) + str(variable2) + str(variable3))

**Note:**

**注意：**

*  If we want to display any message or separator, we can also concatenate them with the variables.
    
    如果要显示任何消息或分隔符，也可以将它们与变量连接起来。
 *  If a variable is a string, then there is no need to use *str()*.
    
    如果变量是字符串，则无需使用*str()* 。

**Example:**

**例：**

# Python program to print multiple variables
    # using string concatenation
    
    name = "Mike"
    age = 21
    country = "USA"
    
    print("Without separator...")
    print(name + str(age) + country)
    
    print("Separating by commas...")
    print(name + "," + str(age) + "," + country)
    print("Printing with messages...")
    
    print("Name: " + name + " Age: " + str(age) + " Country: " + country)

**Output:**

**输出：**

Without separator...
    Mike21USA
    Separating by commas...
    Mike,21,USA
    Printing with messages...
    Name: Mike Age: 21 Country: USA

> 翻译自: [https://www.includehelp.com/python/print-multiple-variables.aspx][https_www.includehelp.com_python_print-multiple-variables.aspx]

python打印多个变量

[sep parameter]: https://www.includehelp.com/python/sep-parameter-in-python-with-print-function.aspx
[print_ function]: https://www.includehelp.com/python/print-function.aspx
[https_www.includehelp.com_python_print-multiple-variables.aspx]: https://www.includehelp.com/python/print-multiple-variables.aspx