Python_round函數（小數的處理）

round函數對小數的處理：

1、設置保留多少位小數

2、會有四舍五入的處理

實例：

(1)保留n位小數

s = 1.234567
result = round(s, 2)
print(result)
1.23

(2)自動四舍五入

s = 1.23567
result = round(s, 2)
print(result)
1.24

>>> s = 1.234567
>>> result = round(s, 2)
>>> print(result)
1.23


>>> s = 1.23567
>>> result = round(s, 2)
>>> print(result)
1.24