Final Answer:
For file I/O, you must use the open statement to open a file and the close statement to close it.
Step-by-step explanation:
File I/O stands for file input/output. It allows programs to read data from files and write data to files. There are two main steps involved in file I/O:
Opening the file: This involves specifying the file name and the mode in which the file should be opened (e.g., read-only, write-only, or append). The open statement is used for this purpose.
Performing I/O operations: Once the file is open, you can read data from it or write data to it using various statements depending on the programming language.
Closing the file: This is important to release any resources associated with the file and ensure data integrity. The close statement is used for this purpose.
The specific syntax and functions used for file I/O will vary depending on the programming language. However, the general principles outlined above apply to all languages.
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Complete Question
For file I/O, you must use the _______________ .
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