二章 (第6/7页)

d_in_cover_tentpacket,hop

    mark_for_decaypacket#让痕迹在可见度上逐步淡出

    #无害模拟：人口中的「概念」传播纯本地模拟

    importrandom

    importstatistics

    defsimute_spreadpop_size=1000,initial_seed=5,i_prob=0.03,resist_prob=0.1,steps=50:

    #状态:0=未接触,1=接触但未采纳,2=采纳「感染」

    popution=[0]*pop_size

    #随机设置初始采纳者seed

    foriinrandom.samplerangepop_size,initial_seed:

    popution[=2

    history=[]

    forstepinraeps:

    new_popution=popution.copy

    foriinrangepop_size:

    ifpopution[==2:

    #试着影响k随机接触者

    tacts=random.samplerangepop_size,k=5

    fortacts:

    ifpopution[c]==0:

    ifrandom.random
    #接触後有机会直接采纳

    n