Python | 确定变量的类型

亦凉 2023-03-05 12:50 28阅读 0赞

Given some variables and we have to **determine and print their type** (i.e. the [data type of Python variables][])?

给定一些变量，我们必须**确定并打印它们的类型** (即[Python变量][data type of Python variables]的[数据类型][data type of Python variables] )？

**Example:**

**例：**

Input:
        var = 10
    
        Output:
        type(var) = <type 'int'>

## Python type()方法 **(**Python type() Method**)** ##

type() returns the type of the variable.

type()返回变量的类型。

**Syntax:**

**句法：**

type(variable_name)

**Program:**

**程序：**

# declare different types of variables
    var1 = None
    var2 = 10
    var3 = 20.20
    var4 = "Hello world!"
    var5 = [10,20,30]
    var6 = ['Hello', 'world']
    var7 = [ [10,20], [30,40], [50,60] ]
    var8 = True
    var9 = (1, 'AmitShukla', 21)
    var10 = {
        10, 20, 30}
    var11 = {
        1:'Amit', 2: 'Abhishek'}
    
    # print variables type 
    print "type (var1) : ", type (var1)
    print "type (var2) : ", type (var2)
    print "type (var3) : ", type (var3)
    print "type (var4) : ", type (var4)
    print "type (var5) : ", type (var5)
    print "type (var6) : ", type (var6)
    print "type (var7) : ", type (var7)
    print "type (var8) : ", type (var8)
    print "type (var9) : ", type (var9)
    print "type (var10): ", type (var10)
    print "type (var11 : ", type (var11)

**Output**

**输出量**

type (var1) :  <type 'NoneType'>
        type (var2) :  <type 'int'>
        type (var3) :  <type 'float'>
        type (var4) :  <type 'str'>
        type (var5) :  <type 'list'>
        type (var6) :  <type 'list'>
        type (var7) :  <type 'list'>
        type (var8) :  <type 'bool'>
        type (var9) :  <type 'tuple'>
        type (var10):  <type 'set'>
        type (var11 :  <type 'dict'>

> 翻译自: [https://www.includehelp.com/python/determine-type-of-a-variable.aspx][https_www.includehelp.com_python_determine-type-of-a-variable.aspx]

[data type of Python variables]: https://www.includehelp.com/python/variables-and-data-types.aspx
[https_www.includehelp.com_python_determine-type-of-a-variable.aspx]: https://www.includehelp.com/python/determine-type-of-a-variable.aspx