Domain is a special command in WORD, which consists of curly braces, domain name (domain code) and option switch. The domain code is similar to a formula, and the domain option combination is a special instruction that can trigger a specific operation in the domain. If we can skillfully apply fields when processing documents with WORD, it will bring great convenience to our work. Especially when making scientific papers, it has irreplaceable advantages of formula editor. I. Operation of Updating Fields When the fields in the WORD document do not display the latest information, users should take the following measures to update them in order to obtain new field results. 1. Update a single field: first click the field or field result to update, and then press F9. 2. Update all fields in the document: execute the Select All command in the Edit menu, select the whole document, and then press F9. In addition, users can execute the Options command on the Tools menu, click the Print tab, and then select the Update Fields check box, so that WORD can automatically update all fields in the document before each print. 2. Show or hide the domain code 1. Show or hide the specified domain code: first click the domain or its result that needs to realize the domain code, and then press the key combination of "Shift+F9". 2. Show or hide all the field codes in the document: press ALT+F9. Three. Lock/unlock domain operation 1. The way to lock a domain to prevent modifying the results of the current domain is to click the domain, and then press CTRL+F 1 1. 2. To unlock the domain, you can change it by clicking it, and then press the key combination of "Ctrl+Shift+F 1 1". Fourth, unlink the domain name. First select the related domain content, and then press "Ctrl+Shift+F9" to unlink the domain. At this time, the current domain result will become regular text (that is, all functions of the domain will be lost), and it will certainly not be updated in the future. If users need to update information again, they must insert the same fields in the document to achieve the goal. V. Create an overline with the field Select the field under the Insert menu item, enter the equalizer switch parameters at the field code and confirm. Note that there is a space between "EQ" and the switch parameter. For example, enter the average value of y (y is underlined) and insert the field "eq \ x \ to? y "？ Click "OK" and the "Y" style will appear. Sixth, use fields to enter scores. The input of scores is generally done by the formula editor of WORD. In fact, it is easier to enter scores with fields. When operating, first position the cursor where you want to enter the score (for example, enter "") and press CTRL+F9. (You can also click the Insert Domain command in the menu bar, then find the eq item in the domain name list box, and click OK at the bottom of the domain dialog box. Insert the domain definition "",and then enter the string "eq space \ f (a? B) ",then click the right mouse button on it, and select the command" Switch to domain code "in the pop-up shortcut menu, and the domain result will be generated. For the band score, just enter the integer part 1 before the real score, and it becomes the band score 1. Of course, you can give full play to his role and your intelligence, comprehensively apply these fields, and flexibly input scores in the form of "". Moreover, the results of fields such as scores entered in this way will move with other characters when typesetting, and will not be misplaced because of typesetting, like the objects inserted by the formula editor. If you enter a lot of scores, you can first enter the domain code of a score, and then copy and paste the modified values to improve the input speed. In the EQ space \ f (a? B) ",eq stands for the domain name for creating scientific formula. \ f？ Toggles the options for creating fractional formulas. Other common switching options include creating radicals \ r? , create superscript subscript \ s? And \ i mean to establish an integral. For the correspondence between field codes and formulas, you can check the help information about fields in WORD. Seven. Count the number of words in the document with the field ① Position the mouse at the place where the number of words needs to be counted (such as the end of the document), and then enter the text about the word count result (such as "The total number of words in this article is:"). ② Select "Insert" and "Domain" in the menu bar to enter the "Domain" dialog box. ③ In the domain dialog box, first select the document information item in the category list, and then select the NumWords item in the domain name list box. This item is used to count the total number of words in the document. You can also select the "NumChars" item to calculate the total number of characters in the document, select the "NumPages" item to calculate the total number of pages in the document, and then left-click the "Options" button to enter the "Domain Options" dialog box. ④ In the Domain Options dialog box, first select 1, 2,3, … in the Format list box, then click Add to Domain to add the selected format to the domain format, and then click OK to return to the Domain dialog box. ⑤ Click OK in the "Domain" dialog box to close all dialog boxes and return to the document editing status. At this point, you can see "Total words in this article: XXXX" displayed at the current cursor. ⑥ After inserting the above fields, if the document is modified, move the mouse to position the cursor on the field code (the color will turn gray at this time), then press F9, and WORD will automatically update the field and display the updated total number of words. ⑦ For convenience, we can insert word-sensitive statistical results into each document.