a=b=
2# 鏈式賦值
print
(a)print
(b)c=
id(a)
#位址print
(c)c=
type
(a)#型別
print
(c)a,b=2,
3# 系列解包賦值
a,b=b,a
print
(a)print
(b)# 基本運算
print(3
+2)print(30
-5)print(30
/5)print(30
//5)print(5
*6)print(7
%4)print(2
**3)a=
divmod(13
,3)print
(a)print()
# int()實現型別轉換
a=int
(3.14
)print
(a)a=
float(3
)print
(a)print
(round
(3.14))
# 增強型賦值運算子
a+=2
print
(a)a-=
2print
(a)a*=
2print
(a)a/=
2print
(a)a//=
2print
(a)a**=
2print
(a)a%=
2print
(a)#計算當前時間
import time
a=time.time(
)print
(a)b=a//
60print
(b)print
(int
(b))
print
(int
(b)//
60//24)
# 畫折現，計算距離
import turtle
import math
x1,y1=
100,
100x2,y2=
200,
100x3,y3=
500,
200x4,y4=
400,
50turtle.goto(x1,y1)
turtle.goto(x2,y2)
turtle.goto(x3,y3)
turtle.goto(x4,y4)
distance=math.sqrt(
(x4-x1)**2
+(y4-y1)**2
)print
(distance)
#布林值運算b=2
+true
print
(b)#比較運算子
a,b=10,
20print
(a==b)
print
(a!=b)
print
(a>b)
print
(aprint
(a>=b)
print
(a<=b)
#邏輯運算子
a=true
b=false
print
(a or30)
print
(a or30/
0)print
(b or30)
print
(a and30)
print
(b and30)
#同一運算子
a,b=
111,
111print(id
(a))
print(id
(b))
print
(a==b)
print
(a is b)
a,b=
1111
,1111
print(id
(a))
print(id
(b))
print
(a==b)
print
(a is b)
# 字串編碼
print
(ord
("高"))
print
(chr
(10300))
a="i am a teacher!"
print
(a)a=
'i am a "tom"'
print
(a)a=
'''name="liang"
***="famale" age=18'''
print
(a)c=
""print
(len
(c))
a="i\nlove\nyou"
print
(a)a=
"i\'m a teacher"
print
(a)a=
"aaa"
+"bbb"
print
(a)a=
"aaa"
"bbb"
print
(a)a=
"aaa"*3
print
(a)print
("aa"
,end=
"*")
print
("bb"
,end=
"*")
print
("cc"
)myname=
input
("請輸入你的名字："
)"""
a=str
(3.14
)print
(a[-1]
)print
(a.replace(
".",
"高")
)print
(a[:])
print
(a[1:3
])print
(a[-2:
-5:1
])a=" to be or not to be"
print
(a[::-
1])a=
"sxt"*5
print
(a)print
(a[0::
3])a=
["to"
,"you"
]print
(a)print
('*'
.join(a)
)a,b=
"abd_33"
,"abd_33"
print
(a is b)
a,b=
"abd#"
,"abd#"
print
(a is b)
print(id
(a))
print(id
(b))
print
(a==b)
print
("a"
in a)
print
("ddd"
in a)
a="名字是，年齡是"
b=a.
format
("小明",20
)print
(b)a=
"名字是，年齡是"
b=a.
format
(name=
"小明"
,age=20)
print
(b)
彙編 第二節
第二節 cpu主要有有運算器，控制器，暫存器，三部分組成 8086 cpu有14個暫存器，如ax,bx,cx,dx,si。8086所有暫存器都是16位的，可以存放2個byte即位元組，16位二進位制數 所能存放的最大數值是 11111111111 2 16 1 從0開始，所以 1嘛 通用暫存器為4個...
函式第二節
coding utf 8 1.定義乙個方法get num num num引數是列表型別，判斷列表裡面的元素為數字型別。其他型別則報錯，並且返回乙個偶數列表 注 列表裡面的元素為偶數 def get num l l for i in l 判斷列表l的元素是否都為整形 if not isinstance...
物件導向第二節
coding utf 8 定義乙個列表的操作類 listinfo 包括的方法 1 列表元素新增 add key keyname keyname 字串或者整數型別 2 列表元素取值 get key num num 整數型別 3 列表合併 update list list list 列表型別 4 刪除並...