(一行代码)Python 科学计数法转普通数值

Python 科学计数法转普通数值

 
 
 
 
 
 
 
 

小记

核心主题:通过 ‘%f’ 来将科学计数法转为普通计数

目标:将数值以普通数字形式写入到 ASCII 编码文件中

 

问题:

1、数值来源于外部,获取到的就是科学计数法

2、懒,只想写一行代码。不想用字符串再做正则匹配,再重新补全数值

 

解决:

1、获取到的数据如下

[
(-0.00010158695658901706, -3.8247013435466215e-05, -14.133688926696777), 
(0.00010158703662455082, 3.824693339993246e-05, -7.853690147399902), 
(0.00010158703662455082, 3.824693339993246e-05, -14.133688926696777),
(0.00010158703662455082, 3.824693339993246e-05, 14.133706092834473), 
(-0.00010158695658901706, -3.8247013435466215e-05, -7.853690147399902), 
(-0.00010158695658901706, -3.8247013435466215e-05, 14.133706092834473),
(0.00010158703662455082, 3.824693339993246e-05, 14.133706092834473),
(-0.00010158695658901706, -3.8247013435466215e-05, -14.133688926696777),
(-0.00010158695658901706, -3.8247013435466215e-05, -7.853690147399902), 
(0.00010158703662455082, 3.824693339993246e-05, 14.133706092834473), 
(0.00010158703662455082, 3.824693339993246e-05, -7.853690147399902), 
(-0.00010158695658901706, -3.8247013435466215e-05, -14.133688926696777)
]

2、我的业务中代码如下

[f.write(f"v {' '.join(map(lambda x: '%f' % x, vertex))}\n") for vertex in
                             geom.vertexes[start_vertex_ind:end_vertex_ind]]

原理就是:
1)、通过 ‘%f’%coord 来把科学计数法转为普通计数
2)、通过 map 来对每个数值进行转换

posted @ 2022-06-05 20:49  阿伦alun  阅读(1409)  评论(0编辑  收藏  举报