In Python, we are used to using bisect to search for elements in the List. In Go, sort.Search() can also provide us with the same purpose. As in Python, the target array is sorted before searching.

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arr := []int{9, 2, 1, 3, 6, 4, 5, 5}
sort. Ints(arr)

After sorting, we use sort.Search(), the first parameter is the search target, and the second is the function of the search condition. Here we input slice: [1 2 3 4 5 5 6 9], find the 5 closest to the left, and the program returns the index 4.

Sometimes I upload videos for my family but don’t know if they already exist on the computer. At this time, I can think of a way to automatically email the titles of the videos already in the video library to myself for reference on a regular basis.

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~/Downloads
➤ cat 2021-12-03-movie_list.txt -r :10
───────┬────────────────────────────────────────────────────────────────────────────────────────────────
       │ File: 2021-12-03-movie_list.txt
───────┼────────────────────────────────────────────────────────────────────────────────────────────────
   1   │ 2021-12-03 Movie List
   2   │
   3   │ CreationTime             Name
   4   │ ------------             ----
   5   │ 2021/11/13 下午 05:03:45 紅色通緝令
   6   │ 2021/11/12 下午 04:03:19 高玩殺手
   7   │ 2021/11/12 下午 04:03:17 007生死交戰
   8   │ 2021/11/12 下午 03:57:13 芬奇的旅程
   9   │ 2021/11/12 下午 03:46:12 沙丘
  10   │ 2021/9/21 下午 03:28:33  最佳销售员
───────┴────────────────────────────────────────────────────────────────────────────────────────────────

1 Gmail low security settings must be turned on

1. Go to Account Settings
2. Click Security in the list on the left.
3. At the bottom of the low security restriction click Turn on access.

In this way, emails can be sent through the smtp.gmail.com api.

My Gist

1 Define Variables

• Python

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  a = 1 b = 0.0 c = 'xxx'

• C++

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  int a = 1; auto a = 1; double b = 0.0; auto b = 0.0; const char c[] = "xxx"; // C string (char array) const char* c = "xxx"; // C string (pointer) std::string c = "xxx"; std::string c("xxx"); std::string c{"xxx"};

2 Variable Scopes

• Python

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  global_var1 = 1 def func(arg): local_var = 2 global global_var2 global_var2 = 'xxx' # global if arg: local_var2 = 0.5 # scope: function ... # if arg evaluates to True, # local_var2 is still accessible here. return False

表格一為台灣各年齡層Facebook用戶數量

表格二為18-24歲用戶，2017年最常互動之媒體排行

表格三為25-34歲用戶，2017年最常互動之媒體排行

表格四為55-64歲用戶，2017年最常互動之媒體排行

其中，互動表示Facebook用戶對該媒體粉絲專頁之貼文按讚、愛心、笑臉、憤怒、悲傷等表情符號，不重複互動人數代表每位用戶不論與該媒體多少篇貼文互動，都僅統計為1不重複互動人數。

以表格三25-34歲台灣Facebook使用者最愛媒體中東森新聞為例，代表在2017年東森新聞發出的全部貼文中，共有1278274位屬於25-34歲之用戶與這些貼文互動。

並且25-34歲人口佔所有與東森新聞互動者中的18.55%，(即25-34歲用戶佔該媒體總互動人口比例一欄)。