Taking word as an example, the method of making horizontal lines on the cover of the paper is as follows: \r\n 1. First, position the cursor at the position where you need to enter an underline; \r\n2。 Click Start and underline the button (or press CTRL+U); \r\n3. Press the space bar to enter an underscore; \r\n4。 The length of the underline is determined by the number of spaces entered, so you need an underline with the same length and enter the same number of spaces. \r\nWord is a word processor application of Microsoft. It was originally written by RichardBrodie in 1983 for IBM computers running DOS. Subsequent versions can run on AppleMacintosh( 1984), SCOUNIX and MicrosoftWindows( 1989) and become part of MicrosoftOffice. Word200 1 was integrated in MacintoshOffice and released in 20001October. Word200 1 also has a separate version. The Macintosh version of WordX was released at 200 1, which was the first version that supported (and needed) MacOSX locally. \ r \ For detailed information about how to make horizontal lines on the cover of papers, please visit:/ask/4E346a1615835887.html? Zd view more content