cannot read property '0' of undefinded是什么意思

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cannot read property '0' of undefinded是什么意思
cannot read property '0' of undefinded是什么意思

cannot read property '0' of undefinded是什么意思
增加：insert
into 表名
values（'插入的内容'）
删除：delete
from 表名
[where<条件>]
查询：select* from 表名 where 条件
修改：update 表名
set 列名=表达式
where 条件
根据具体情况把相应的地方填上就行了.我说的很笼统,具体还要你自己体会.
我建议你去买本数据库的书看看!很有用的!

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