C语言里面字符串操作是关于格式的参数

最新推荐文章于 2025-02-18 19:18:57 发布

fatshaw

最新推荐文章于 2025-02-18 19:18:57 发布

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分类专栏： c++ 文章标签：语言 integer character c

本文链接：https://blog.youkuaiyun.com/fatshaw/article/details/3861605

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本文详细介绍了各种格式说明符及其用途，包括字符、十进制整数、科学计数法、浮点数、字符串等的数据表示方法。此外还涵盖了八进制、十六进制、指针地址及特殊说明符的使用。

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specifier	Output	Example
`c`	Character	`a`
`d` or `i`	Signed decimal integer	`392`
`e`	Scientific notation (mantise/exponent) using `e` character	`3.9265e+2`
`E`	Scientific notation (mantise/exponent) using `E` character	`3.9265E+2`
`f`	Decimal floating point	`392.65`
`g`	Use the shorter of `%e` or `%f`	`392.65`
`G`	Use the shorter of `%E` or `%f`	`392.65`
`o`	Signed octal	`610`
`s`	String of characters	`sample`
`u`	Unsigned decimal integer	`7235`
`x`	Unsigned hexadecimal integer	`7fa`
`X`	Unsigned hexadecimal integer (capital letters)	`7FA`
`p`	Pointer address	`B800:0000`
`n`	Nothing printed. The argument must be a pointer to a signed `int`, where the number of characters written so far is stored.
`%`	A `%` followed by another `%` character will write `%` to `stdout`.