@@ -831,6 +831,28 @@ msgid ""
831831">>> a ^ b # letters in a or b but not both\n"
832832"{'r', 'd', 'b', 'm', 'z', 'l'}"
833833msgstr ""
834+ ">>> basket = {'apple', 'orange', 'apple', 'pear', 'orange', 'banana'}\n"
835+ ">>> print(basket) # 显示重复项已被移除\n"
836+ "{'orange', 'banana', 'pear', 'apple'}\n"
837+ ">>> 'orange' in basket # 快速成员检测\n"
838+ "True\n"
839+ ">>> 'crabgrass' in basket\n"
840+ "False\n"
841+ "\n"
842+ ">>> # 演示针对两个单词中独有的字母进行集合运算\n"
843+ ">>>\n"
844+ ">>> a = set('abracadabra')\n"
845+ ">>> b = set('alacazam')\n"
846+ ">>> a # a 中独有的字母\n"
847+ "{'a', 'r', 'b', 'c', 'd'}\n"
848+ ">>> a - b # 存在于 a 中但不存在于 b 中的字母\n"
849+ "{'r', 'd', 'b'}\n"
850+ ">>> a | b # 存在于 a 或 b 中或两者中皆有的字母\n"
851+ "{'a', 'c', 'r', 'd', 'b', 'm', 'z', 'l'}\n"
852+ ">>> a & b # 同时存在于 a 和 b 中的字母\n"
853+ "{'a', 'c'}\n"
854+ ">>> a ^ b # 存在于 a 或 b 中但非两者中皆有的字母\n"
855+ "{'r', 'd', 'b', 'm', 'z', 'l'}"
834856
835857#: ../../tutorial/datastructures.rst:482
836858msgid ""
@@ -1055,6 +1077,14 @@ msgid ""
10551077"What is your quest? It is the holy grail.\n"
10561078"What is your favorite color? It is blue."
10571079msgstr ""
1080+ ">>> questions = ['name', 'quest', 'favorite color']\n"
1081+ ">>> answers = ['lancelot', 'the holy grail', 'blue']\n"
1082+ ">>> for q, a in zip(questions, answers):\n"
1083+ "... print('What is your {0}? It is {1}.'.format(q, a))\n"
1084+ "...\n"
1085+ "What is your name? It is lancelot.\n"
1086+ "What is your quest? It is the holy grail.\n"
1087+ "What is your favorite color? It is blue."
10581088
10591089#: ../../tutorial/datastructures.rst:600
10601090msgid ""
@@ -1073,6 +1103,14 @@ msgid ""
10731103"3\n"
10741104"1"
10751105msgstr ""
1106+ ">>> for i in reversed(range(1, 10, 2)):\n"
1107+ "... print(i)\n"
1108+ "...\n"
1109+ "9\n"
1110+ "7\n"
1111+ "5\n"
1112+ "3\n"
1113+ "1"
10761114
10771115#: ../../tutorial/datastructures.rst:612
10781116msgid ""
@@ -1093,6 +1131,16 @@ msgid ""
10931131"orange\n"
10941132"pear"
10951133msgstr ""
1134+ ">>> basket = ['apple', 'orange', 'apple', 'pear', 'orange', 'banana']\n"
1135+ ">>> for i in sorted(basket):\n"
1136+ "... print(i)\n"
1137+ "...\n"
1138+ "apple\n"
1139+ "apple\n"
1140+ "banana\n"
1141+ "orange\n"
1142+ "orange\n"
1143+ "pear"
10961144
10971145#: ../../tutorial/datastructures.rst:626
10981146msgid ""
@@ -1115,6 +1163,14 @@ msgid ""
11151163"orange\n"
11161164"pear"
11171165msgstr ""
1166+ ">>> basket = ['apple', 'orange', 'apple', 'pear', 'orange', 'banana']\n"
1167+ ">>> for f in sorted(set(basket)):\n"
1168+ "... print(f)\n"
1169+ "...\n"
1170+ "apple\n"
1171+ "banana\n"
1172+ "orange\n"
1173+ "pear"
11181174
11191175#: ../../tutorial/datastructures.rst:639
11201176msgid ""
@@ -1134,6 +1190,15 @@ msgid ""
11341190">>> filtered_data\n"
11351191"[56.2, 51.7, 55.3, 52.5, 47.8]"
11361192msgstr ""
1193+ ">>> import math\n"
1194+ ">>> raw_data = [56.2, float('NaN'), 51.7, 55.3, 52.5, float('NaN'), 47.8]\n"
1195+ ">>> filtered_data = []\n"
1196+ ">>> for value in raw_data:\n"
1197+ "... if not math.isnan(value):\n"
1198+ "... filtered_data.append(value)\n"
1199+ "...\n"
1200+ ">>> filtered_data\n"
1201+ "[56.2, 51.7, 55.3, 52.5, 47.8]"
11371202
11381203#: ../../tutorial/datastructures.rst:656
11391204msgid "More on Conditions"
@@ -1201,6 +1266,10 @@ msgid ""
12011266">>> non_null\n"
12021267"'Trondheim'"
12031268msgstr ""
1269+ ">>> string1, string2, string3 = '', 'Trondheim', 'Hammer Dance'\n"
1270+ ">>> non_null = string1 or string2 or string3\n"
1271+ ">>> non_null\n"
1272+ "'Trondheim'"
12041273
12051274#: ../../tutorial/datastructures.rst:693
12061275msgid ""
@@ -1245,6 +1314,13 @@ msgid ""
12451314"(1, 2, 3) == (1.0, 2.0, 3.0)\n"
12461315"(1, 2, ('aa', 'ab')) < (1, 2, ('abc', 'a'), 4)"
12471316msgstr ""
1317+ "(1, 2, 3) < (1, 2, 4)\n"
1318+ "[1, 2, 3] < [1, 2, 4]\n"
1319+ "'ABC' < 'C' < 'Pascal' < 'Python'\n"
1320+ "(1, 2, 3, 4) < (1, 2, 4)\n"
1321+ "(1, 2) < (1, 2, -1)\n"
1322+ "(1, 2, 3) == (1.0, 2.0, 3.0)\n"
1323+ "(1, 2, ('aa', 'ab')) < (1, 2, ('abc', 'a'), 4)"
12481324
12491325#: ../../tutorial/datastructures.rst:724
12501326msgid ""
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