Modified the global variable reference in the file istate_charge.cpp

[AsTonyshment]

• Change all global variables to function parameter inputs.
• Modified the file using the corresponding function.

[kirk0830]

Hello, could you please link this PR to one issue, in which considerations of this code change are introduced and explained? So that more maintainers can understand your PR quickly. Thanks!

[kirk0830]

I think I have understood your PR, it is, decouple as much as possible functions with GlobalV. While I have no idea about evaluating this change. Use of GlobalC is rather needed to eliminate all over codes, but for GlobalV I am not sure.
My concern would be the inflation of parameter list, instead a better choice is design an interface between that class with GlobalV, like Init() or configure() etc, so that you can fetch variables by this->.
One possible manual might be: https://ucoyxk075n.feishu.cn/docx/J0BCdXDnwo2OlGxi7KDcVDRWnCh#HfSMdtOO9omWHFxk3e5cNgT0ncb

[AsTonyshment]

I am rather new to this project and still have a lot to learn about. I will take a view into your consideration as far as possible.

[dyzheng]

You have formatted the file esolver_ks_lcao_elec.cpp, it is hard to find which line changed actually.

[haozhihan]

You have formatted the file esolver_ks_lcao_elec.cpp, it is hard to find which line changed actually.

@dyzheng Do you suggest not formatting the original file?
Or is there any other way to solve this problem? For example, first submit a commit for formatting and then submit a commit for the modified content.

[dyzheng]

You have formatted the file esolver_ks_lcao_elec.cpp, it is hard to find which line changed actually.

@dyzheng Do you suggest not formatting the original file? Or is there any other way to solve this problem? For example, first submit a commit for formatting and then submit a commit for the modified content.

I suggest to point out which line has been modified in this PR if the format of original file has been changed.

[dyzheng]

Removing the directly using of global variable comply with ABACUS programming guidelines.
Thanks for your contribution!

[dyzheng]

Please fix the conflicts.