1. Realize regular expression mobile phone verification.
Common mobile phone numbers are all 11 digits
The first 3 digits indicate the region and the operator
Regular expression ^
Tag: mobile phones
C # uses the CEF3 to take the list of Jingdong keyword product list, take the mobile phone as an example
Using c#’s cef3 to simulate browser operations, grab the list of keywords in the Jingdong Mall.
Get the product title, product id, product link, product price
public partial class Form1
Read Guolin “The First Radio Code” note – Chapter 4 mobile phone tablet should be taken into account, explore the fragmentation
(Fragment) is a kind of UI fragment that can be embedded in the activity, it can make the program more reasonable and make full use of the space of the large screen, so it is widely used on the tab