Data and Code for "Mutation enhances cooperation in direct reciprocity"

Data and Code for "Diversity enhances cooperation in direct reciprocity": A Python script used to compute the data and Mathematica notebooks used to produce the plots from the main text.《多样性提升直接互惠（Direct Reciprocity）中的合作》一文对应的数据与代码：用于计算相关数据的Python脚本，以及用于生成正文中图表的Mathematica笔记本文件。