ｂｂｂ００ - 経済統計練習帳

f = open('data.csv', 'r',encoding='UTF-8')
 
x=[] 
for line in f:
    x.append(line)
 
f.close()    
 
y=[]
u=[]
p=[]
r=[]
 
for x1 in x:
   x2=x1.split(",")
   y.append(x2[0])
   u.append(x2[1])
   p.append(x2[2])
for i in range(len(u)):
    u[i]=u[i].replace(".","")
 
 
dic=[]   
for u1 in u:
    sx=-1
    if  u1 in dic:  
        sx=dic.index(u1)
    if sx<0:
       dic.append(u1)
 
n=len(dic)
 
print(n)
 
for d1 in dic:
    print(d1)