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C语言浮点型小数点后为多少位

更新时间: 2020-09-21 00:00:00     

C语言中浮点型一般分为float单精度型、double双精度型、long double长精度型;

单精度浮点型小数点后面有效数字为6至7位,比特位:32位;

双精度浮点型小数点后面有效数字为15至16位,比特位:64位;

长精度型浮点型小数点后面有效数字为17至18位,比特位:128位。

关键词: 语言 小数点 多少

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