joyvan
6 years ago
| 10 | 10 | "cell_type": "markdown", |
| 11 | 11 | "metadata": {}, |
| 12 | 12 | "source": [ |
| 13 | "## 1.1 Python 简介\n", | |
| 13 | "## 1.1.1 Python 简介\n", | |
| 14 | 14 | "\n", |
| 15 | 15 | "<img src=\"https://www.python.org/static/img/python-logo@2x.png\" width=300/> \n", |
| 16 | 16 | "\n", |
| 40 | 40 | "cell_type": "markdown", |
| 41 | 41 | "metadata": {}, |
| 42 | 42 | "source": [ |
| 43 | "## 1.2 数据类型\n", | |
| 43 | "## 1.1.2 数据类型\n", | |
| 44 | 44 | "\n", |
| 45 | 45 | "| 类型| 例子|\n", |
| 46 | 46 | "| ----- | ----- |\n", |
| 189 | 189 | "cell_type": "markdown", |
| 190 | 190 | "metadata": {}, |
| 191 | 191 | "source": [ |
| 192 | "## 1.3 字符串" | |
| 192 | "数值型转字符串：" | |
| 193 | ] | |
| 194 | }, | |
| 195 | { | |
| 196 | "cell_type": "code", | |
| 197 | "execution_count": null, | |
| 198 | "metadata": {}, | |
| 199 | "outputs": [], | |
| 200 | "source": [ | |
| 201 | "str(1)" | |
| 202 | ] | |
| 203 | }, | |
| 204 | { | |
| 205 | "cell_type": "markdown", | |
| 206 | "metadata": {}, | |
| 207 | "source": [ | |
| 208 | "字符串转数字型：" | |
| 209 | ] | |
| 210 | }, | |
| 211 | { | |
| 212 | "cell_type": "code", | |
| 213 | "execution_count": null, | |
| 214 | "metadata": {}, | |
| 215 | "outputs": [], | |
| 216 | "source": [ | |
| 217 | "int('1')" | |
| 218 | ] | |
| 219 | }, | |
| 220 | { | |
| 221 | "cell_type": "markdown", | |
| 222 | "metadata": {}, | |
| 223 | "source": [ | |
| 224 | "## 1.1.3 字符串" | |
| 193 | 225 | ] |
| 194 | 226 | }, |
| 195 | 227 | { |
| 364 | 396 | "cell_type": "markdown", |
| 365 | 397 | "metadata": {}, |
| 366 | 398 | "source": [ |
| 367 | "## 1.4 索引和分片\n", | |
| 399 | "## 1.1.4 索引和分片\n", | |
| 368 | 400 | "\n", |
| 369 | 401 | "### 索引\n", |
| 370 | 402 | "\n", |
| 440 | 472 | "cell_type": "markdown", |
| 441 | 473 | "metadata": {}, |
| 442 | 474 | "source": [ |
| 443 | "## 1.5 列表\n", | |
| 475 | "## 1.1.5 列表\n", | |
| 444 | 476 | "\n", |
| 445 | 477 | "列表是一个有序的序列。\n", |
| 446 | 478 | "\n", |
| 918 | 950 | "cell_type": "markdown", |
| 919 | 951 | "metadata": {}, |
| 920 | 952 | "source": [ |
| 921 | "## 1.6 字典\n", | |
| 953 | "## 1.1.6 字典\n", | |
| 922 | 954 | "\n", |
| 923 | 955 | "字典 `dictionary` ，在一些编程语言中也称为 `hash` ， `map` ，是一种由键值对组成的数据结构。\n", |
| 924 | 956 | "\n", |
| 1097 | 1129 | "cell_type": "markdown", |
| 1098 | 1130 | "metadata": {}, |
| 1099 | 1131 | "source": [ |
| 1100 | "## 1.7 元组\n", | |
| 1132 | "## 1.1.7 元组\n", | |
| 1101 | 1133 | "\n", |
| 1102 | 1134 | "元组`Tuple`也是个有序序列，但是元组是不可变的，用`()`生成。" |
| 1103 | 1135 | ] |
| 1153 | 1185 | "cell_type": "markdown", |
| 1154 | 1186 | "metadata": {}, |
| 1155 | 1187 | "source": [ |
| 1156 | "## 1.8 集合" | |
| 1188 | "可以把元组转为列表：" | |
| 1189 | ] | |
| 1190 | }, | |
| 1191 | { | |
| 1192 | "cell_type": "code", | |
| 1193 | "execution_count": null, | |
| 1194 | "metadata": {}, | |
| 1195 | "outputs": [], | |
| 1196 | "source": [ | |
| 1197 | "a = (10, 11, 12, 13, 14)\n", | |
| 1198 | "b = list(a)\n", | |
| 1199 | "print(b)\n", | |
| 1200 | "type(b)" | |
| 1201 | ] | |
| 1202 | }, | |
| 1203 | { | |
| 1204 | "cell_type": "markdown", | |
| 1205 | "metadata": {}, | |
| 1206 | "source": [ | |
| 1207 | "## 1.1.8 集合" | |
| 1157 | 1208 | ] |
| 1158 | 1209 | }, |
| 1159 | 1210 | { |
| 1239 | 1290 | "cell_type": "markdown", |
| 1240 | 1291 | "metadata": {}, |
| 1241 | 1292 | "source": [ |
| 1242 | "## 1.9 判断语句" | |
| 1293 | "## 1.1.9 判断语句" | |
| 1243 | 1294 | ] |
| 1244 | 1295 | }, |
| 1245 | 1296 | { |
| 1479 | 1530 | "cell_type": "markdown", |
| 1480 | 1531 | "metadata": {}, |
| 1481 | 1532 | "source": [ |
| 1482 | "## 1.10 循环\n", | |
| 1533 | "## 1.1.10 循环\n", | |
| 1483 | 1534 | "\n", |
| 1484 | 1535 | "循环的作用在于将一段代码重复执行多次。\n", |
| 1485 | 1536 | "\n", |