MongDB是一種非關(guān)系型數(shù)據(jù)庫(kù)(NoSQL)，非關(guān)系型數(shù)據(jù)庫(kù)是以key-value的形式展現(xiàn)的，相比關(guān)系型數(shù)據(jù)庫(kù)來(lái)說(shuō)，存儲(chǔ)容易，那么Python如何操作MongDB呢?

首先要確保是否安裝，如果已安裝進(jìn)行連接即可，下面是一些CURD操作(增刪改查)：

·插入一條數(shù)據(jù)insert_one()

test={"name":"zhangsan","age":"25","sex":"man"}

run1.insert_one(test)

·插入一條數(shù)據(jù)insert_many()

testone={"name":"zhangsan","age":"25","sex":"man"};

testtwo={"name":"lisi","age":"20","sex":"woman"};

list=[testone,testtwo];

run1.insert_many(list);

·刪除一條數(shù)據(jù)delete_one()

#刪除name字段值為"lisi"

run1.delete_one({"name":"lisi"});

·刪除多條數(shù)據(jù)delete_many()

#刪除name字段值為"zhangsan"的多條數(shù)據(jù)

run1.delete_many({"name":"zhangsan"});

·刪除集合【表】drop()

run1.drop();

·修改一條數(shù)據(jù)update_one()

#前面是查詢的條件也就是需要更改的條件后面是需要修改的內(nèi)容

run1.update_one({"name":"lisi"},{"$set":{"age":"30"}});

·修改多條數(shù)據(jù)update_many()

#修改以w開(kāi)頭的sex字段的所有數(shù)據(jù)換成性別為woman

one={"sex":{"$regex":"^w"}};

two={"$set":{"sex":"man"}};

run1.update_many(one,two);

·查詢一條數(shù)據(jù)find_one()

list={"name":"zhangsan","sex":"man"};

run1.find_one(list);

·查詢多條數(shù)據(jù)find()

forfindoneinrun1.find({"sex":"woman"})