别傻傻的猜2021欧洲杯赛果，AI都帮你分析好了！威尔士VS瑞士

def vs_AB(teamA, teamB):
    df_AB = df_all[(df_all['home_team'].isin([teamA,teamB]))&(df_all['away_team'].isin([teamA,teamB]))]
    result_vs = df_AB.groupby('winner')['winner'].count()
    result_vs.sort_values(ascending=False, inplace=True)
    dict_AB = dict(result_vs)
    if teamA not in dict_AB:
        dict_AB[teamA] = 0
    if teamB not in dict_AB:
        dict_AB[teamB] = 0
    print('双方历史上共交手次数：')
    print(df_AB.shape[0])     
    print('胜负情况如下')
    for key,value in dict_AB.items():
        print(str(key)+':'+str(value))
    print('\n')
    vs_A = dict_AB[teamA] / df_AB.shape[0]
    vs_B = dict_AB[teamB] / df_AB.shape[0]
    
    return vs_A, vs_B

def FIFA_AB(teamA, teamB):
    rank_A = float(df_FIFA[df_FIFA['Team']==teamA]['Points'])
    rank_B = float(df_FIFA[df_FIFA['Team']==teamB]['Points'])
    print(teamA + ' 的FIFA积分为：' + str(rank_A))
    print(teamB + ' 的FIFA积分为：' + str(rank_B))
    print('\n')
    FIFA_A = rank_A / (rank_A + rank_B)
    FIFA_B = rank_B / (rank_A + rank_B)
    
    return FIFA_A, FIFA_B

def value_AB(teamA, teamB):
    values_A = float(df_value[df_value['Team']==teamA]['Value_billion_pounds'])
    values_B = float(df_value[df_value['Team']==teamB]['Value_billion_pounds'])
    print(teamA + ' 全队身价为：' + str(values_A) + ' Billion Pounds')    
    print(teamB + ' 全队身价为：' + str(values_B) + ' Billion Pounds')  
    print('\n')
    value_A = values_A / (values_A + values_B)
    value_B = values_B / (values_A + values_B)
    
    return value_A, value_B

def home_field_AB(teamA, teamB):
    df_schedule_AB = df_schedule[(df_schedule['Team1'].isin([teamA,teamB]))&(df_schedule['Team2'].isin([teamA,teamB]))]
    if len(df_schedule_AB) == 0:
        print('本场比赛未在小组赛的赛程表中。\n')
        return
    else:
        home_field = df_schedule_AB['Home Field'].tolist()[0]
        if teamA==home_field:
            home_field_A, home_field_B = 1, 0
            print(teamA + ' 占据主场优势。')
        elif teamB==home_field:
            home_field_A, home_field_B = 0, 1
            print(teamB + ' 占据主场优势。')
        else:
            home_field_A, home_field_B = 0, 0
            print('两支球队均没有主场优势。')
    print('\n')
        
    return home_field_A, home_field_B

def score(teamA, teamB, weight_vs, weight_FIFA, weight_value, weight_home_field): 
    vs_A, vs_B = vs_AB(teamA, teamB)
    FIFA_A, FIFA_B = FIFA_AB(teamA, teamB)
    value_A, value_B = value_AB(teamA, teamB)
    home_field_ = home_field_AB(teamA, teamB)
    if not home_field_:
        print('如果进行比赛，\n')
        home_field_A, home_field_B = 0, 0
    else:
        home_field_A, home_field_B = home_field_
    score_A = vs_A * weight_vs + FIFA_A * weight_FIFA + value_A * weight_value + home_field_A * weight_home_field
    score_B = vs_B * weight_vs + FIFA_B * weight_FIFA + value_B * weight_value + home_field_B * weight_home_field
    if score_A > score_B:
        print(teamA + ' 获胜概率大。')
    elif score_A < score_B:
        print(teamB + ' 获胜概率大。')        
    else:
        print(teamA + ' 与 ' + teamB + ' 大概率打平。')
    
    return