问题:对xz.txt文件进行遍历的时候只能查找到最后一个字典
shop_list = []
while True:
id=int(input('输入商品编号:'))
name=input('输入商品名称:')
a={'id':id,'name':name}
shop_list.append(a)
b=input('继续添加?y/n')
if b=='y':
continue
else:
print('输入的产品信息为:'+str(shop_list)+'\t')
a=input('确实储存?')
if a=='y':
break
else:
shop_list=[]
if a=='y':
print('以保存')
else:
print('以清除')
break
break
def save(shop_list):
try:
c=open('xz.txt','a',encoding='utf-8')
except:
c=open('xz.txt','w',encoding='utf-8')
for iten in shop_list:
print(iten)
c.write(str(iten)+'\n')
c.close()
save(shop_list)
```python
def chioce():
go=[]
while True:
a=input('输入要加入购物车的商品:')
with open('xz.txt','r',encoding='utf-8')as c:
shop=c.readlines()
for item in shop:
print(item)
item = dict(eval(item))
#print(shop)
#print(item)
a=int(a)
if item['id']==a:
b=item['name']
print(b)
go.append(b)
break
else:
print('没有这个商品')
break
shop.append(a)
print('购物车里有',go)
if __name__ == '__main__':
chioce()
![img](https://img-mid.csdnimg.cn/release/static/image/mid/ask/06687669582618.png '屏幕截图 2021-08-10 195702.png')