August 2021
Intermediate to advanced
450 pages
9h 36m
Chinese
Content preview from C++程序设计：原理与实践（基础篇）（原书第2版）
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11.2.3 输出浮点数
如果你直接面对硬件的话，需要使用十六进制（或者八进制）的表示方式。类似地，如果你进行科学计算，就必须处理浮点数的格式。这些类型的处理与整型值的处理方法类似，都是借助于iostream的操纵符。例如：
会输出：
操纵符fixed、scientific和defaultfloat用来选择浮点数格式。defaultfloat是默认格式（也叫作通用格式（general format））。现在，我们可以这样写：
会输出：
对基本的浮点数格式化输出操纵符总结如下：
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