1.列表与字典嵌套，读取字典内数据。
synckey = [{'phone': 656595046, 'Num': 1}, {'phone': 656595157, 'Num': 2}, {'phone': 656595140, 'Num': 3}, {'phone': 1494809641, 'Num': 1000}]
sync_list = []
for item in synckey:
temp = "序号%s_ 手机号%s" %(item['Num'],item['phone'],)
sync_list.append(temp)
sn = "|".join(sync_list)
print(sn)
