1. The following is the input method of these three long horizontal lines. The first type of long horizontal line, first switch the input method to any Chinese input method and switch to the half-angle state. The long horizontal line in the middle is called the connecting line. You can enter the middle connecting line by pressing the Shift key without putting the minus key.

2. If you type a long horizontal line in the middle, you can press the shift key and then press the symbol key next to the 0 key at the top of the keyboard to type. If it is a sliding horizontal line, you can switch the input method to English, then hold down the shift key, and then hold down the symbol key next to the 0 key.

3. For the first long horizontal line, in the case of using English input method, you can press the Shift key first, and then press the minus sign key several times to input a continuous underline. The second type of long horizontal line, in the case of using English input method, can be input by pressing multiple "-"minus keys.

4. In the Chinese input method, hold down the Shift key and click the "-"key to print the horizontal line "-". 2. In the English input method, hold down the Shift key and click the "-"key to underline "_". 3. In word; Select "Start"-the "U" in the font and then enter it, and the lower horizontal line can be printed.

5. The input method of long horizontal lines in word is as follows: Open the Word document through desktop search or shortcut. Click "Blank Document" on the right side of the word interface to create a new blank document. Hold down the "Shift" key on the keyboard, click the "-"key continuously, and input at least 6 "-"continuously.

6. The method of making long horizontal lines in excel is: first, double-click the table on the computer, open the table, select the cells to be inserted with horizontal lines, and click to insert the "-"shape. Then find the line in the shape and select the front line shape in the line option.