第二节 2.6浮点数的存法

<h2>记住知识点：</h2> <p>1、小数点左移，指数部分：指数减1的二进制数 <img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/71d8bc89c9dbfad3d98022060cab9448" alt="" /></p> <p>2、小数点右移，指数部分：指数的二进制数，取反 <img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/da1f33aaa4b511f7b26d238c102f2980" alt="" /></p> <p>3、符号位：正0，负1 4、小数点方向位：左1，右0</p> <hr /> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/d631d2638f79652a1e814d5576b5e4f8" alt="" /></p> <hr /> <hr /> <h1>例１：8.25的存法：</h1> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/b52ee81d6470308480fe463b33482df1" alt="" /></p> <hr /> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/1ee0d1631d97daef905815029dfebf3e" alt="" /></p> <hr /> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/b9ad3dfc897c2e9ef3de4c8c2fab0efe" alt="" /></p> <hr /> <hr /> <h1>例２：0.7的存法：</h1> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/ea5c6271827be20e4587e6b72ed15103" alt="" /> <img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/11ec6136c9b94e6c368f25a1eec2be65" alt="" /></p> <hr /> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/63c3e99098461d9c9157e61f58ac2693" alt="" /></p> <hr /> <hr /> <h1>例３：0.8的存法：</h1> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/d20eef27a96bd825a736c9c8b461a7d2" alt="" /> <img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/644a054db8acca3e3ca1ffaf974283fd" alt="" /></p> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/808f14478623af49286034a02d2444d6" alt="" /></p> <hr /> <hr /> <h1>例４：12.5的存法：</h1> <p><img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/e0b31a566666c99648c86bbc5ecb58c4" alt="" /> <img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/a48aeca79275ca86d414c7bd6faddb30" alt="" /> <img src="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/7d7e5d35c28c7f8d71dbf1d0e83ec7c2" alt="" /></p>