在2016 年,Young,Scardovi 和Leonard [10] 的文章中,他們在邊加權的有向圖上,對圖中兩個不同的節點i 和j 定義了有效電阻rij 的新概念。在此碩士論文中,我們主要的工作是蒐集用來了解rij 定義的基礎知識並證明必要的數學理論。在論文的最後,我們透過Python程式計算一些特殊有向圖上的有效電阻,以提供有向圖結構對rij 影響的線索。;In [10], Young, Scardovi and Leonard gave a definition of effective resistance rij for two distinct nodes i and j in an edge-weighted directed graph. In this report we describe basic knowledge and develop necessary tools to understand their interesting definition of effective resistance in directed graphs.