Recommended 5 articles about the cyclic process

The content of the XML file is as follows (the name is "teacher.xml") zhangsan 1912000 lisi 23 8000 Code for using PULL to parse XML files: import java .io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.List; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; i

1. Sample code sharing of the loop process when using PULL to parse XML files

##Introduction: If eventType is not equal to XmlPullParser.END_DOCUMENT, proceed to the next cycle. There are 11 eventType values ​​here, but only the first 5 are used.

2. Why does php report a memory overflow after running for a while?

Introduction: I read 100,000 pieces of data from the database at one time, and then did some calculations in a loop. During the loop, the variables involved will be overwritten by the next loop. The current situation is that after the program has been running for a period of time, it reports a memory overflow. Why doesn't it report a memory overflow at the beginning? According to my understanding...

3. The most common questions asked by php learners

Introduction: php The most common problems for learners What kind of problems do PHP beginners often encounter? ------Solution--------------------This varies from person to person and I cannot give you an exact answer. Only by experiencing it yourself can you find out what the problem is. ------Solution--------------------At the beginning of learning, it was a cyclical process of discovering and solving problems ------Solution- ---------

4. Obtain WeChat user information in batches, request the WeChat url link multiple times in the loop, and the access_token it brings is invalid

Introduction: When obtaining tens of thousands of WeChat messages, the access_token obtained from the WeChat link is requested multiple times in a loop, but an error like this occurs during the running process {"errcode" :40001,"errmsg":"invalid credential, access_token is invalid or not latest"}, during the loop...

5. javascript loop variable registration dom event Powerful closure_javascript skills

Introduction: This is changed during the loop process, and the registered events are also changed accordingly. I found a solution

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