2020-10-19 21:08:55

docs/da/009.md

@@ -6,40 +6,40 @@
 
 In [1]:
 
-```
+```py
 2 + 2
 
 ```
 
 Out[1]:
 
-```
+```py
 4
 ```
 
 In [2]:
 
-```
+```py
 3 - 4
 
 ```
 
 Out[2]:
 
-```
+```py
 -1
 ```
 
 In [3]:
 
-```
+```py
 4 * 5
 
 ```
 
 Out[3]:
 
-```
+```py
 20
 ```
 
@@ -49,14 +49,14 @@ Out[3]:
 
 In [4]:
 
-```
+```py
 12 / 5
 
 ```
 
 Out[4]:
 
-```
+```py
 2
 ```
 
@@ -64,14 +64,14 @@ Out[4]:
 
 In [5]:
 
-```
+```py
 2 ** 5
 
 ```
 
 Out[5]:
 
-```
+```py
 32
 ```
 
@@ -79,14 +79,14 @@ Out[5]:
 
 In [6]:
 
-```
+```py
 32 % 5
 
 ```
 
 Out[6]:
 
-```
+```py
 2
 ```
 
@@ -94,7 +94,7 @@ Out[6]:
 
 In [7]:
 
-```
+```py
 a = 1
 a
 
@@ -102,7 +102,7 @@ a
 
 Out[7]:
 
-```
+```py
 1
 ```
 
@@ -110,14 +110,14 @@ Out[7]:
 
 In [8]:
 
-```
+```py
 type(a)
 
 ```
 
 Out[8]:
 
-```
+```py
 int
 ```
 
@@ -129,7 +129,7 @@ int
 
 In [9]:
 
-```
+```py
 import sys
 sys.maxint
 
@@ -137,7 +137,7 @@ sys.maxint
 
 Out[9]:
 
-```
+```py
 2147483647
 ```
 
@@ -147,13 +147,13 @@ Out[9]:
 
 In [10]:
 
-```
+```py
 a = sys.maxint + 1
 print type(a)
 
 ```
 
-```
+```py
 <type 'long'>
 
 ```
@@ -162,14 +162,14 @@ print type(a)
 
 In [11]:
 
-```
+```py
 a
 
 ```
 
 Out[11]:
 
-```
+```py
 2147483648L
 ```
 
@@ -177,7 +177,7 @@ Out[11]:
 
 In [12]:
 
-```
+```py
 b = 1234L
 type(b)
 
@@ -185,7 +185,7 @@ type(b)
 
 Out[12]:
 
-```
+```py
 long
 ```
 
@@ -193,14 +193,14 @@ long
 
 In [13]:
 
-```
+```py
 a - 4
 
 ```
 
 Out[13]:
 
-```
+```py
 2147483644L
 ```
 
@@ -208,7 +208,7 @@ Out[13]:
 
 In [14]:
 
-```
+```py
 a = 1.4
 type(a)
 
@@ -216,7 +216,7 @@ type(a)
 
 Out[14]:
 
-```
+```py
 float
 ```
 
@@ -224,40 +224,40 @@ float
 
 In [15]:
 
-```
+```py
 12.0 / 5.0
 
 ```
 
 Out[15]:
 
-```
+```py
 2.4
 ```
 
 In [16]:
 
-```
+```py
 12 / 5.0
 
 ```
 
 Out[16]:
 
-```
+```py
 2.4
 ```
 
 In [17]:
 
-```
+```py
 12.0 / 5
 
 ```
 
 Out[17]:
 
-```
+```py
 2.4
 ```
 
@@ -265,14 +265,14 @@ Out[17]:
 
 In [18]:
 
-```
+```py
 5 + 2.4
 
 ```
 
 Out[18]:
 
-```
+```py
 7.4
 ```
 
@@ -280,53 +280,53 @@ Out[18]:
 
 In [19]:
 
-```
+```py
 3.4 - 3.2
 
 ```
 
 Out[19]:
 
-```
+```py
 0.19999999999999973
 ```
 
 In [20]:
 
-```
+```py
 12.3 + 32.4
 
 ```
 
 Out[20]:
 
-```
+```py
 44.7
 ```
 
 In [21]:
 
-```
+```py
 2.5 ** 2
 
 ```
 
 Out[21]:
 
-```
+```py
 6.25
 ```
 
 In [22]:
 
-```
+```py
 3.4 % 2.1
 
 ```
 
 Out[22]:
 
-```
+```py
 1.2999999999999998
 ```
 
@@ -338,14 +338,14 @@ Out[22]:
 
 In [23]:
 
-```
+```py
 '{:.52}'.format(3.4 - 3.2)
 
 ```
 
 Out[23]:
 
-```
+```py
 '0.199999999999999733546474089962430298328399658203125'
 ```
 
@@ -353,12 +353,12 @@ Out[23]:
 
 In [24]:
 
-```
+```py
 print 3.4 - 3.2
 
 ```
 
-```
+```py
 0.2
 
 ```
@@ -367,7 +367,7 @@ print 3.4 - 3.2
 
 In [25]:
 
-```
+```py
 import sys
 sys.float_info
 
@@ -375,7 +375,7 @@ sys.float_info
 
 Out[25]:
 
-```
+```py
 sys.float_info(max=1.7976931348623157e+308, max_exp=1024, max_10_exp=308, min=2.2250738585072014e-308, min_exp=-1021, min_10_exp=-307, dig=15, mant_dig=53, epsilon=2.220446049250313e-16, radix=2, rounds=1)
 ```
 
@@ -383,14 +383,14 @@ sys.float_info(max=1.7976931348623157e+308, max_exp=1024, max_10_exp=308, min=2.
 
 In [26]:
 
-```
+```py
 sys.float_info.max
 
 ```
 
 Out[26]:
 
-```
+```py
 1.7976931348623157e+308
 ```
 
@@ -398,14 +398,14 @@ Out[26]:
 
 In [27]:
 
-```
+```py
 sys.float_info.min
 
 ```
 
 Out[27]:
 
-```
+```py
 2.2250738585072014e-308
 ```
 
@@ -413,14 +413,14 @@ Out[27]:
 
 In [28]:
 
-```
+```py
 sys.float_info.epsilon
 
 ```
 
 Out[28]:
 
-```
+```py
 2.220446049250313e-16
 ```
 
@@ -430,7 +430,7 @@ Out[28]:
 
 In [29]:
 
-```
+```py
 a = 1 + 2j
 type(a)
 
@@ -438,7 +438,7 @@ type(a)
 
 Out[29]:
 
-```
+```py
 complex
 ```
 
@@ -446,40 +446,40 @@ complex
 
 In [30]:
 
-```
+```py
 a.real
 
 ```
 
 Out[30]:
 
-```
+```py
 1.0
 ```
 
 In [31]:
 
-```
+```py
 a.imag
 
 ```
 
 Out[31]:
 
-```
+```py
 2.0
 ```
 
 In [32]:
 
-```
+```py
 a.conjugate()
 
 ```
 
 Out[32]:
 
-```
+```py
 (1-2j)
 ```
 
@@ -489,14 +489,14 @@ Out[32]:
 
 In [33]:
 
-```
+```py
 1 + 2 - (3 * 4 / 6) ** 5 + 7 % 5
 
 ```
 
 Out[33]:
 
-```
+```py
 -27
 ```
 
@@ -511,27 +511,27 @@ Out[33]:
 
 In [34]:
 
-```
+```py
 12.3 // 5.2
 
 ```
 
 Out[34]:
 
-```
+```py
 2.0
 ```
 
 In [35]:
 
-```
+```py
 12.3 // -4
 
 ```
 
 Out[35]:
 
-```
+```py
 -4.0
 ```
 
@@ -541,14 +541,14 @@ Out[35]:
 
 In [36]:
 
-```
+```py
 abs(-12.4)
 
 ```
 
 Out[36]:
 
-```
+```py
 12.4
 ```
 
@@ -556,14 +556,14 @@ Out[36]:
 
 In [37]:
 
-```
+```py
 round(21.6)
 
 ```
 
 Out[37]:
 
-```
+```py
 22.0
 ```
 
@@ -571,13 +571,13 @@ Out[37]:
 
 In [38]:
 
-```
+```py
 print min(2, 3, 4, 5)
 print max(2, 4, 3)
 
 ```
 
-```
+```py
 2
 4
 
@@ -589,14 +589,14 @@ print max(2, 4, 3)
 
 In [39]:
 
-```
+```py
 type(max)
 
 ```
 
 Out[39]:
 
-```
+```py
 builtin_function_or_method
 ```
 
@@ -604,7 +604,7 @@ builtin_function_or_method
 
 In [40]:
 
-```
+```py
 max = 1
 type(max)
 
@@ -612,18 +612,18 @@ type(max)
 
 Out[40]:
 
-```
+```py
 int
 ```
 
 In [41]:
 
-```
+```py
 max(4, 5)
 
 ```
 
-```
+```py
 ---------------------------------------------------------------------------
 TypeError                                 Traceback (most recent call last)
 <ipython-input-41-c60446be959c> in <module>()
@@ -638,13 +638,13 @@ TypeError: 'int' object is not callable
 
 In [42]:
 
-```
+```py
 print int(12.324)
 print int(-3.32)
 
 ```
 
-```
+```py
 12
 -3
 
@@ -654,12 +654,12 @@ print int(-3.32)
 
 In [43]:
 
-```
+```py
 print float(1.2)
 
 ```
 
-```
+```py
 1.2
 
 ```
@@ -672,14 +672,14 @@ print float(1.2)
 
 In [44]:
 
-```
+```py
 1e-6
 
 ```
 
 Out[44]:
 
-```
+```py
 1e-06
 ```
 
@@ -687,14 +687,14 @@ Out[44]:
 
 In [45]:
 
-```
+```py
 0xFF
 
 ```
 
 Out[45]:
 
-```
+```py
 255
 ```
 
@@ -702,14 +702,14 @@ Out[45]:
 
 In [46]:
 
-```
+```py
 067
 
 ```
 
 Out[46]:
 
-```
+```py
 55
 ```
 
@@ -717,14 +717,14 @@ Out[46]:
 
 In [47]:
 
-```
+```py
 0b101010
 
 ```
 
 Out[47]:
 
-```
+```py
 42
 ```
 
@@ -734,7 +734,7 @@ Out[47]:
 
 In [48]:
 
-```
+```py
 b = 2.5
 b += 2
 print b
@@ -745,7 +745,7 @@ print b
 
 ```
 
-```
+```py
 4.5
 9.0
 6.0
@@ -758,7 +758,7 @@ print b
 
 In [49]:
 
-```
+```py
 q = True
 type(q)
 
@@ -766,7 +766,7 @@ type(q)
 
 Out[49]:
 
-```
+```py
 bool
 ```
 
@@ -774,20 +774,20 @@ bool
 
 In [50]:
 
-```
+```py
 q = 1 > 2
 print q
 
 ```
 
-```
+```py
 False
 
 ```
 
 常用的比较符号包括：
 
-```
+```py
 <, >, <=, >=, ==, != 
 ```
 
@@ -795,7 +795,7 @@ False
 
 In [51]:
 
-```
+```py
 x = 2 
 1 < x <= 3
 
@@ -803,7 +803,7 @@ x = 2
 
 Out[51]:
 
-```
+```py
 True
 ```