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The difference between fprintf and printf
The difference between fprintf and printf is that the output destination is different. printf outputs to the standard output stream, while fprintf outputs to the specified file stream. Select the appropriate function to perform output operations as needed. For more details about fprintf and printf related articles, please see the articles below this topic. PHP Chinese website welcomes everyone to come and learn.
What is the difference between putchar and printfThe difference between putchar and printf: 1. The parameter type of putchar is int, and the parameter type of printf is string; 2. putchar can only output one character, and printf can output multiple characters; 3. putchar cannot format output, but printf can format it. output; 4. putchar has no return value, printf returns the number of characters successfully output; 5. putchar outputs to the console, printf is not limited to output to the console; 6. performance, etc.
Are #define and printf C statements?Neither #define nor printf are C statements, because C language statements are used to issue operating instructions to the computer system. After a statement is compiled, it generates several machine instructions. C statements are used to complete certain operating tasks, while #define is Preprocessing command, printf is a function in the standard library.
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