Using hashMap storing data, and make the automatic sorting, and then the key value for the value of 3, according to data is null,
But in the debug view, has been put into, but no sorting, solve

CodePudding user response:

Has been solved, because TXT document coding is utf-8 - bom, so there is a space at the start of, as long as in the first line of sentences, can not read

CodePudding user response:

https://blog.csdn.net/qq_35787905/article/details/78853125