|
26 | 26 | "cell_type": "markdown", |
27 | 27 | "metadata": {}, |
28 | 28 | "source": [ |
29 | | - "# 2. 数字 \n", |
30 | | - "Python 的核心对象集合包括常规的类型:整数、浮点数以及更为少见的类型(有虚部的复数、固定精度的十进制数、带分子和分母的有理分数以及集合等)。" |
31 | | - ] |
32 | | - }, |
33 | | - { |
34 | | - "cell_type": "code", |
35 | | - "execution_count": 1, |
36 | | - "metadata": {}, |
37 | | - "outputs": [ |
38 | | - { |
39 | | - "data": { |
40 | | - "text/plain": [ |
41 | | - "345" |
42 | | - ] |
43 | | - }, |
44 | | - "execution_count": 1, |
45 | | - "metadata": {}, |
46 | | - "output_type": "execute_result" |
47 | | - } |
48 | | - ], |
49 | | - "source": [ |
50 | | - "123 + 222 # 整数加法" |
51 | | - ] |
52 | | - }, |
53 | | - { |
54 | | - "cell_type": "code", |
55 | | - "execution_count": 2, |
56 | | - "metadata": {}, |
57 | | - "outputs": [ |
58 | | - { |
59 | | - "data": { |
60 | | - "text/plain": [ |
61 | | - "6.0" |
62 | | - ] |
63 | | - }, |
64 | | - "execution_count": 2, |
65 | | - "metadata": {}, |
66 | | - "output_type": "execute_result" |
67 | | - } |
68 | | - ], |
69 | | - "source": [ |
70 | | - "1.5 * 4 # 浮点数乘法" |
71 | | - ] |
72 | | - }, |
73 | | - { |
74 | | - "cell_type": "code", |
75 | | - "execution_count": 3, |
76 | | - "metadata": { |
77 | | - "scrolled": true |
78 | | - }, |
79 | | - "outputs": [ |
80 | | - { |
81 | | - "data": { |
82 | | - "text/plain": [ |
83 | | - "1267650600228229401496703205376" |
84 | | - ] |
85 | | - }, |
86 | | - "execution_count": 3, |
87 | | - "metadata": {}, |
88 | | - "output_type": "execute_result" |
89 | | - } |
90 | | - ], |
91 | | - "source": [ |
92 | | - "2 ** 100 # 2 的 100 次方" |
93 | | - ] |
94 | | - }, |
95 | | - { |
96 | | - "cell_type": "code", |
97 | | - "execution_count": 5, |
98 | | - "metadata": {}, |
99 | | - "outputs": [ |
100 | | - { |
101 | | - "data": { |
102 | | - "text/plain": [ |
103 | | - "3.141592653589793" |
104 | | - ] |
105 | | - }, |
106 | | - "execution_count": 5, |
107 | | - "metadata": {}, |
108 | | - "output_type": "execute_result" |
109 | | - } |
110 | | - ], |
111 | | - "source": [ |
112 | | - "import math\n", |
113 | | - "math.pi" |
114 | | - ] |
115 | | - }, |
116 | | - { |
117 | | - "cell_type": "code", |
118 | | - "execution_count": 6, |
119 | | - "metadata": {}, |
120 | | - "outputs": [ |
121 | | - { |
122 | | - "data": { |
123 | | - "text/plain": [ |
124 | | - "9.219544457292887" |
125 | | - ] |
126 | | - }, |
127 | | - "execution_count": 6, |
128 | | - "metadata": {}, |
129 | | - "output_type": "execute_result" |
130 | | - } |
131 | | - ], |
132 | | - "source": [ |
133 | | - "math.sqrt(85)" |
134 | | - ] |
135 | | - }, |
136 | | - { |
137 | | - "cell_type": "code", |
138 | | - "execution_count": 7, |
139 | | - "metadata": {}, |
140 | | - "outputs": [ |
141 | | - { |
142 | | - "data": { |
143 | | - "text/plain": [ |
144 | | - "0.11591978672141845" |
145 | | - ] |
146 | | - }, |
147 | | - "execution_count": 7, |
148 | | - "metadata": {}, |
149 | | - "output_type": "execute_result" |
150 | | - } |
151 | | - ], |
152 | | - "source": [ |
153 | | - "import random\n", |
154 | | - "random.random()" |
155 | | - ] |
156 | | - }, |
157 | | - { |
158 | | - "cell_type": "code", |
159 | | - "execution_count": 8, |
160 | | - "metadata": {}, |
161 | | - "outputs": [ |
162 | | - { |
163 | | - "data": { |
164 | | - "text/plain": [ |
165 | | - "2" |
166 | | - ] |
167 | | - }, |
168 | | - "execution_count": 8, |
169 | | - "metadata": {}, |
170 | | - "output_type": "execute_result" |
171 | | - } |
172 | | - ], |
173 | | - "source": [ |
174 | | - "random.choice([1, 2, 3, 4])" |
175 | | - ] |
176 | | - }, |
177 | | - { |
178 | | - "cell_type": "markdown", |
179 | | - "metadata": {}, |
180 | | - "source": [ |
181 | | - "# 3. 字符串\n" |
182 | | - ] |
183 | | - }, |
184 | | - { |
185 | | - "cell_type": "code", |
186 | | - "execution_count": null, |
187 | | - "metadata": {}, |
188 | | - "outputs": [], |
189 | | - "source": [] |
190 | | - }, |
191 | | - { |
192 | | - "cell_type": "code", |
193 | | - "execution_count": null, |
194 | | - "metadata": {}, |
195 | | - "outputs": [], |
196 | | - "source": [] |
197 | | - }, |
198 | | - { |
199 | | - "cell_type": "markdown", |
200 | | - "metadata": {}, |
201 | | - "source": [ |
202 | | - "# 1. 变量" |
| 29 | + "# 2. 变量" |
203 | 30 | ] |
204 | 31 | }, |
205 | 32 | { |
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