要將字串轉換為數字,有多種方法。讓我們一一看看。
在此範例中,我們將使用 int() 方法將字串轉換為數字 -
# String to be converted myStr = "200" # Display the string and it's type print("String = ",myStr) print("Type= ", type(myStr)) # Convert the string to integer using int() and display the type myInt = int(myStr) print("\nInteger = ", myInt) print("Type = ", type(myInt))
String = 200 Type= <class 'str'> Integer = 200 Type = <class 'int'>
在此範例中,我們將使用 float() 方法將字串轉換為浮點數,然後使用 int() 方法將浮點數轉換為整數 -
# String to be converted myStr = "500" # Display the string and it's type print("String = ",myStr) print("Type= ", type(myStr)) # Convert the string to float myFloat = float(myStr) print("\nFloat = ", myFloat) print("Type = ", type(myFloat)) # Convert the float to int myInt = int(myFloat) print("\nInteger = ", myInt) print("Type = ", type(myInt))
String = 500 Type= <class 'str'> Float = 500.0 Type = <class 'float'> Integer = 500 Type = <class 'int'>
在此範例中,我們將使用帶有基本參數的 int() 將字串轉換為數字。
# String to be converted myStr = "500" # Display the string and it's type print("String = ",myStr) print("Type= ", type(myStr)) # Convert the string to int myInt1 = int(myStr) print("\nInteger (base10) = ", myInt1) print("Type = ", type(myInt1)) # Convert the string to int myInt2 = int(myStr, base=8) print("\nInteger (base8) = ", myInt2) print("Type = ", type(myInt2))
String = 500 Type= <class 'str'> Integer (base10) = 500 Type = <class 'int'> Integer (base8) = 320 Type = <class 'int'>
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