python基礎函數(shù)大全 查看變量類型的python內置函數(shù)?
查看變量類型的python內置函數(shù)?示例說明:內置函數(shù)isinstance(object,(Type1,type2))isinstance(“content”,STR)返回true或false使用內置
查看變量類型的python內置函數(shù)?
示例說明:
內置函數(shù)isinstance(object,(Type1,type2))
isinstance(“content”,STR)
返回true或false
使用內置函數(shù)類型(object)
print(type(1))
print(type(“content”)
output
<type“int”>;return shaping
<type“STR”>#return string
在Python中有內置的對數(shù)函數(shù)。log()方法為X>0返回X的自然對數(shù)。語法下面是log()方法的語法:#!/usr/bin/Python import math#這將導入math moduleprint “數(shù)學.log(100.12) : ", 數(shù)學.log(100.12)打印“數(shù)學.log(100.72) : ", 數(shù)學.log(100.72)打印“數(shù)學.log(119L):“數(shù)學.log(119L)打印“數(shù)學.log( 數(shù)學.pi) : ", 數(shù)學.log( 數(shù)學.pi)當我們運行上述程序時,將產(chǎn)生以下結果: 數(shù)學.log(100.12) : 4.60636946656 數(shù)學.log(100.72) : 4.61234438974 數(shù)學.log(119L):4.77912349311數(shù)學.log( 數(shù)學.pi) : 1.14472988585