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更新数字

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Learning Python/2、类型和运算
- 2. 数字.ipynb

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`‎Learning Python/2、类型和运算/2. 数字.ipynb`

Lines changed: 44 additions & 4 deletions

Original file line number	Diff line number	Diff line change
`@@ -274,7 +274,7 @@`
`274`	`274`	`"X / Y \n",`
`275`	`275`	`"真除法,无论任何类型都会保持小数部分。 \n",`
`276`	`276`	`"X // Y \n",`
`277`		`- "Floor 除法,不考虑操作对象的类型,总会省略掉结果的小数部分。 "`
	`277`	`+ "Floor 除法,不考虑操作对象的类型,运算结果总是向负无穷的方向舍入。 "`
`278`	`278`	`]`
`279`	`279`	`},`
`280`	`280`	`{`
`@@ -428,6 +428,46 @@`
`428`	`428`	`"(2 + 1j) * 3"`
`429`	`429`	`]`
`430`	`430`	`},`
	`431`	`+ {`
	`432`	`+ "cell_type": "code",`
	`433`	`+ "execution_count": 1,`
	`434`	`+ "metadata": {},`
	`435`	`+ "outputs": [`
	`436`	`+ {`
	`437`	`+ "data": {`
	`438`	`+ "text/plain": [`
	`439`	`+ "(1+2j)"`
	`440`	`+ ]`
	`441`	`+ },`
	`442`	`+ "execution_count": 1,`
	`443`	`+ "metadata": {},`
	`444`	`+ "output_type": "execute_result"`
	`445`	`+ }`
	`446`	`+ ],`
	`447`	`+ "source": [`
	`448`	`+ "complex('1+2j') # 将字符串或数字转换成复数,字符串 + - 周围不能有空格"`
	`449`	`+ ]`
	`450`	`+ },`
	`451`	`+ {`
	`452`	`+ "cell_type": "code",`
	`453`	`+ "execution_count": 3,`
	`454`	`+ "metadata": {},`
	`455`	`+ "outputs": [`
	`456`	`+ {`
	`457`	`+ "data": {`
	`458`	`+ "text/plain": [`
	`459`	`+ "(1+0j)"`
	`460`	`+ ]`
	`461`	`+ },`
	`462`	`+ "execution_count": 3,`
	`463`	`+ "metadata": {},`
	`464`	`+ "output_type": "execute_result"`
	`465`	`+ }`
	`466`	`+ ],`
	`467`	`+ "source": [`
	`468`	`+ "complex(1)"`
	`469`	`+ ]`
	`470`	`+ },`
`431`	`471`	`{`
`432`	`472`	`"cell_type": "markdown",`
`433`	`473`	`"metadata": {},`
`@@ -994,7 +1034,7 @@`
`994`	`1034`	`"cell_type": "markdown",`
`995`	`1035`	`"metadata": {},`
`996`	`1036`	`"source": [`
`997`		`- "使用小数对象,结果能够改正(接受参数为字符串)"`
	`1037`	`+ "使用小数对象,结果能够改正,参数可以是整数,字符串,元组,float,或另一个 Decimal 对象。"`
`998`	`1038`	`]`
`999`	`1039`	`},`
`1000`	`1040`	`{`
`@@ -1309,7 +1349,7 @@`
`1309`	`1349`	`"## 3.3 集合(Set)\n",`
`1310`	`1350`	`"集合是一些唯一的、不可变的对象的一个无序集合,这些对象支持与数学集合理论相对应的操作。 \n",`
`1311`	`1351`	`"\n",`
`1312`		`- "要创建一个集合对象,需要向内置的set函数传递一个序列或其他的可迭代的对象。"`
	`1352`	`+ "要创建一个集合对象,需要向内置的 set 函数传递一个序列或其他的可迭代的对象。"`
`1313`	`1353`	`]`
`1314`	`1354`	`},`
`1315`	`1355`	`{`
`@@ -1826,7 +1866,7 @@`
`1826`	`1866`	`"name": "python",`
`1827`	`1867`	`"nbconvert_exporter": "python",`
`1828`	`1868`	`"pygments_lexer": "ipython3",`
`1829`		`- "version": "3.6.5"`
	`1869`	`+ "version": "3.7.3"`
`1830`	`1870`	`}`
`1831`	`1871`	`},`
`1832`	`1872`	`"nbformat": 4,`

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