Python hex()用法及代碼示例

用法:

hex(x)

參數：

hex() 函數采用單個參數。

x- 整數(int對象或它必須定義__index__()返回整數的方法)

返回：

hex() 函數將整數轉換為字符串形式對應的十六進製數並返回。

返回的十六進製字符串以前綴0x 開頭，表明它是十六進製形式。

示例 1：hex() 如何工作？

number = 435
print(number, 'in hex =', hex(number))

number = 0
print(number, 'in hex =', hex(number))

number = -34
print(number, 'in hex =', hex(number))

returnType = type(hex(number))
print('Return type from hex() is', returnType)

輸出

435 in hex = 0x1b3
0 in hex = 0x0
-34 in hex = -0x22
Return type from hex() is <class 'str'>

如果需要查找浮點數的十六進製表示，則需要使用float.hex() 方法。

示例 2：浮點數的十六進製表示

number = 2.5
print(number, 'in hex =', float.hex(number))

number = 0.0
print(number, 'in hex =', float.hex(number))

number = 10.5
print(number, 'in hex =', float.hex(number))

輸出

2.5 in hex = 0x1.4000000000000p+1
0.0 in hex = 0x0.0p+0
10.5 in hex = 0x1.5000000000000p+3