scientific notation checker

In addition to the following code, but also to say a float, float is approximate number, such as in Java or JS, 0.1 add 10 times, the result is 1.0000001, not 1. The above is the Android programmer to learn PHP development (5)-Boolean scientific notation-phpstorm content, more relevant content please pay attention to topic.alibabacloud.com (www.php.cn)! 

1. Link: Click the open link2. Code:#include Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. Pat (A) 1073. Scientific Notation (water problem)

Have you ever encountered this problem during the project? I will share with you today that the answers I have found online are for the gridview control, in addition, the type of the ID card number column of the DataTable is string, and the type of the ID card number column is enclosed by single quotation marks. However, I have not tried it successfully. I don't know whether it is my character or not, but today, my entire solution perfectly avoids scientific