[xdoctest][task 272-273，282-283] reformat example code with google style in`utils/`, `tensor/`#56438

Merged

luotao1 merged 4 commits intoPaddlePaddle:developfrom ooooo-create:ooooo/xdoctest272

Aug 21, 2023

+183-156

Commits on Aug 18, 2023

Commits on Aug 19, 2023

fix xd style
ooooo-create
committed