fix mistakes
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@@ -98,7 +98,7 @@
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"source": [
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"我们通过 `[ ]` 关键字查找序列中某个位置的元素。\n",
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"\n",
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"例如 `l[0]` 可以获取序列中首个元素,`l[2]` 可以获取序列中第 2 个元素。同时它还支持倒序查找,例如 `l[-1]` 表示倒数第一个元素(末尾的元素)。"
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"例如 `l[0]` 可以获取序列中首个元素,`l[1]` 可以获取序列中第 2 个元素。同时它还支持倒序查找,例如 `l[-1]` 表示倒数第一个元素(末尾的元素)。"
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]
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},
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{
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@@ -122,7 +122,7 @@
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"## 查找 首个 元素\n",
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"print(l[0])\n",
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"## 查找第 2 个元素\n",
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"print(l[2])\n",
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"print(l[1])\n",
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"## 查找第 最后 元素\n",
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"print(l[-1])\n",
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"## 查找倒数第 2 个元素\n",
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@@ -488,7 +488,7 @@
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" if course_name == 'language':\n",
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" self.language_score = score\n",
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" ## 如果输入的 course_name 不是 math 或者 language,则输出错误信息\n",
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" print(course_name, \" course is still not in current system\")\n",
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" print(course_name, \" course is still not in current system\")\n",
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" \n",
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" def print_name(self,):\n",
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" print(self.name)\n",
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