字典
===
~~~
db_config = {
"ip":"127.0.0.1",
"port":5432,
"uid":"dollarkiller",
"pwd":"123456789"
}
print(db_config)
# 遍历所有属性
for key,val in db_config.items():
print(key," : ",val)
# 遍历所有Key
for key in db_config.keys():
print(key," : ",db_config[key])
# 遍历所有val
for val in db_config.values():
print(val)
~~~
