Django之ORM属性类型和约束条件

ORM属性类型：

1. CharField

        字符串字段, 用于较短的字符串.

        CharField 要求必须有一个参数 maxlength, 用于从数据库层和Django校验层限制该字段所允许的最大字符数.

2. IntegerField

       #用于保存一个整数.

3.FloatField

一个浮点数,对应sql双精度

4. AutoField

        一个 IntegerField, 添加记录时它会自动增长. 你通常不需要直接使用这个字段;

        自定义一个主键：my_id=models.AutoField(primary_key=True)

        如果你不指定主键的话,系统会自动添加一个主键字段到你的 model.

5. DateField

        一个日期字段. 共有下列额外的可选参数:

        Argument    描述

        auto_now    当对象被保存时,自动将该字段的值设置为当前时间.通常用于表示 "last-modified" 时间戳.

        auto_now_add    当对象首次被创建时,自动将该字段的值设置为当前时间.通常用于表示对象创建时间.

        （仅仅在admin中有意义...)

6. DateTimeField

         一个日期时间字段. 类似 DateField 支持同样的附加选项.

7. DecimalField

        一个浮点数. 必须 提供两个参数:

        参数    描述

        max_digits    总位数(不包括小数点和符号)

        decimal_places    小数位数

                举例来说, 要保存最大值为 999 (小数点后保存2位),你要这样定义字段:

                models.DecimalField(..., max_digits=5, decimal_places=2)

                要保存最大值一百万(小数点后保存10位)的话,你要这样定义:

                models.DecimalField(..., max_digits=17, decimal_places=10) #max_digits大于等于17就能存储百万以上的数了

                admin 用一个文本框()表示该字段保存的数据.

8. BooleanField

        A true/false field. admin 用 checkbox 来表示此类字段.

9. TextField

        一个容量很大的文本字段.

        admin 用一个 (</span>文本区域<span lang="EN-US">)</span>表示该字段数据<span lang="EN-US">.(</span>一个多行编辑框<span lang="EN-US">).</span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">10. EmailField</span></h3> <p ><span lang="EN-US">        </span><span >一个带有检查<span lang="EN-US">Email</span>合法性的<span lang="EN-US"> CharField,</span>不接受<span lang="EN-US"> maxlength </span>参数<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US"> </span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">11. ImageField</span></h3> <p ><span lang="EN-US">        </span><span >类似<span lang="EN-US"> FileField, </span>不过要校验上传对象是否是一个合法图片<span lang="EN-US">.#</span>它有两个可选参数<span lang="EN-US">:height_field</span>和<span lang="EN-US">width_field,</span></span></p> <p ><span lang="EN-US">        </span><span >如果提供这两个参数<span lang="EN-US">,</span>则图片将按提供的高度和宽度规格保存<span lang="EN-US">.    </span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">12. FileField</span></h3> <p ><span lang="EN-US">     </span><span >一个文件上传字段<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US">     </span><span >要求一个必须有的参数<span lang="EN-US">: upload_to, </span>一个用于保存上载文件的本地文件系统路径<span lang="EN-US">. </span>这个路径必须包含<span lang="EN-US"> strftime #formatting,</span></span></p> <p ><span lang="EN-US">     </span><span >该格式将被上载文件的<span lang="EN-US"> date/time</span></span></p> <p ><span lang="EN-US">     </span><span >替换<span lang="EN-US">(so that uploaded files don't fill up the given directory).</span></span></p> <p ><span lang="EN-US">     admin </span><span >用一个<span lang="EN-US"><input type="file"></span>部件表示该字段保存的数据<span lang="EN-US">(</span>一个文件上传部件<span lang="EN-US">) .</span></span></p> <p ><span lang="EN-US"> </span></p> <p ><span lang="EN-US">     </span><span >注意：在一个<span lang="EN-US"> model </span>中使用<span lang="EN-US"> FileField </span>或<span lang="EN-US"> ImageField </span>需要以下步骤<span lang="EN-US">:</span></span></p> <p ><span lang="EN-US">            </span><span >（<span lang="EN-US">1</span>）在你的<span lang="EN-US"> settings </span>文件中<span lang="EN-US">, </span>定义一个完整路径给<span lang="EN-US"> MEDIA_ROOT </span>以便让<span lang="EN-US"> Django</span>在此处保存上传文件<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US">            (</span><span >出于性能考虑<span lang="EN-US">,</span>这些文件并不保存到数据库<span lang="EN-US">.) </span>定义<span lang="EN-US">MEDIA_URL </span>作为该目录的公共<span lang="EN-US"> URL. </span>要确保该目录对</span></p> <p ><span lang="EN-US">             WEB</span><span >服务器用户帐号是可写的<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US">            </span><span >（<span lang="EN-US">2</span>） 在你的<span lang="EN-US"> model </span>中添加<span lang="EN-US"> FileField </span>或<span lang="EN-US"> ImageField, </span>并确保定义了<span lang="EN-US"> upload_to </span>选项<span lang="EN-US">,</span>以告诉<span lang="EN-US"> Django</span></span></p> <p ><span lang="EN-US">             </span><span >使用<span lang="EN-US"> MEDIA_ROOT </span>的哪个子目录保存上传文件<span lang="EN-US">.</span>你的数据库中要保存的只是文件的路径<span lang="EN-US">(</span>相对于<span lang="EN-US"> MEDIA_ROOT).</span></span></p> <p ><span lang="EN-US">             </span><span >出于习惯你一定很想使用<span lang="EN-US"> Django </span>提供的<span lang="EN-US"> get_<#fieldname>_url </span>函数<span lang="EN-US">.</span>举例来说<span lang="EN-US">,</span>如果你的<span lang="EN-US"> ImageField</span></span></p> <p ><span lang="EN-US">             </span><span >叫作<span lang="EN-US"> mug_shot, </span>你就可以在模板中以<span lang="EN-US"> {{ object.#get_mug_shot_url }} </span>这样的方式得到图像的绝对路径<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">13. URLField</span></h3> <p ><span lang="EN-US">      </span><span >用于保存<span lang="EN-US"> URL. </span>若<span lang="EN-US"> verify_exists </span>参数为<span lang="EN-US"> True (</span>默认<span lang="EN-US">), </span>给定的<span lang="EN-US"> URL </span>会预先检查是否存在<span lang="EN-US">( </span>即<span lang="EN-US">URL</span>是否被有效装入且</span></p> <p ><span lang="EN-US">      </span><span >没有返回<span lang="EN-US">404</span>响应<span lang="EN-US">).</span></span></p> <p ><span lang="EN-US">      admin </span><span >用一个<span lang="EN-US"> <input type="text"> </span>文本框表示该字段保存的数据<span lang="EN-US">(</span>一个单行编辑框<span lang="EN-US">) </span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">14. SlugField</span></h3> <p ><span lang="EN-US">       "Slug" </span><span >是一个报纸术语<span lang="EN-US">. slug </span>是某个东西的小小标记<span lang="EN-US">(</span>短签<span lang="EN-US">), </span>只包含字母<span lang="EN-US">,</span>数字<span lang="EN-US">,</span>下划线和连字符<span lang="EN-US">.#</span>它们通常用于<span lang="EN-US">URLs</span></span></p> <p ><span lang="EN-US">       </span><span >若你使用<span lang="EN-US"> Django </span>开发版本<span lang="EN-US">,</span>你可以指定<span lang="EN-US"> maxlength. </span>若<span lang="EN-US"> maxlength </span>未指定<span lang="EN-US">, Django </span>会使用默认长度<span lang="EN-US">: 50.  #</span>在</span></p> <p ><span lang="EN-US">       </span><span >以前的<span lang="EN-US"> Django </span>版本<span lang="EN-US">,</span>没有任何办法改变<span lang="EN-US">50 </span>这个长度<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US">       </span><span >这暗示了<span lang="EN-US"> db_index=True.</span></span></p> <p ><span lang="EN-US">       </span><span >它接受一个额外的参数<span lang="EN-US">: prepopulate_from, which is a list of fields from which to auto-#populate</span></span></p> <p ><span lang="EN-US">       the slug, via Javascript,in the object's admin form: models.SlugField</span></p> <p ><span lang="EN-US">       (prepopulate_from=("pre_name", "name"))prepopulate_from </span><span >不接受<span lang="EN-US"> DateTimeFields.</span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">15. XMLField</span></h3> <p ><span lang="EN-US">        </span><span >一个校验值是否为合法<span lang="EN-US">XML</span>的<span lang="EN-US"> TextField,</span>必须提供参数<span lang="EN-US">: schema_path, </span>它是一个用来校验文本的<span lang="EN-US"> RelaxNG schema #</span>的文件系统路径<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">16. FilePathField</span></h3> <p ><span lang="EN-US">        </span><span >可选项目为某个特定目录下的文件名<span lang="EN-US">. </span>支持三个特殊的参数<span lang="EN-US">, </span>其中第一个是必须提供的<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US">        </span><span >参数<span lang="EN-US">    </span>描述</span></p> <p ><span lang="EN-US">        path    </span><span >必需参数<span lang="EN-US">. </span>一个目录的绝对文件系统路径<span lang="EN-US">. FilePathField </span>据此得到可选项目<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US">        Example: "/home/images".</span></p> <p ><span lang="EN-US">        match    </span><span >可选参数<span lang="EN-US">. </span>一个正则表达式<span lang="EN-US">, </span>作为一个字符串<span lang="EN-US">, FilePathField </span>将使用它过滤文件名<span lang="EN-US">. </span></span></p> <p ><span lang="EN-US">        </span><span >注意这个正则表达式只会应用到 <span lang="EN-US">base filename </span>而不是</span></p> <p ><span lang="EN-US">        </span><span >路径全名<span lang="EN-US">. Example: "foo.*\.txt^", </span>将匹配文件<span lang="EN-US"> foo23.txt </span>却不匹配<span lang="EN-US"> bar.txt </span>或<span lang="EN-US"> foo23.gif.</span></span></p> <p ><span lang="EN-US">        recursive</span><span >可选参数<span lang="EN-US">.</span>要么<span lang="EN-US"> True </span>要么<span lang="EN-US"> False. </span>默认值是<span lang="EN-US"> False. </span>是否包括<span lang="EN-US"> path </span>下面的全部子目录<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US">        </span><span >这三个参数可以同时使用<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US">        match </span><span >仅应用于<span lang="EN-US"> base filename, </span>而不是路径全名<span lang="EN-US">. </span>那么<span lang="EN-US">,</span>这个例子<span lang="EN-US">:</span></span></p> <p ><span lang="EN-US">        FilePathField(path="/home/images", match="foo.*", recursive=True)</span></p> <p ><span lang="EN-US">        ...</span><span >会匹配<span lang="EN-US"> /home/images/foo.gif </span>而不匹配<span lang="EN-US"> /home/images/foo/bar.gif</span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">17. IPAddressField</span></h3> <p ><span lang="EN-US">        </span><span >一个字符串形式的<span lang="EN-US"> IP </span>地址<span lang="EN-US">, (i.e. "24.124.1.30").</span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">18. CommaSeparatedIntegerField</span></h3> <p ><span lang="EN-US">        </span><span >用于存放逗号分隔的整数值<span lang="EN-US">. </span>类似<span lang="EN-US"> CharField, </span>必须要有<span lang="EN-US">maxlength</span>参数<span lang="EN-US">.</span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">18. NullBooleanField</span></h3> <p ><span lang="EN-US">       </span><span >类似<span lang="EN-US"> BooleanField, </span>不过允许<span lang="EN-US"> NULL </span>作为其中一个选项<span lang="EN-US">. </span>推荐使用这个字段而不要用<span lang="EN-US"> BooleanField </span>加<span lang="EN-US"> null=True </span>选项</span></p> <p ><span lang="EN-US">       admin </span><span >用一个选择框<span lang="EN-US"> <select> (</span>三个可选择的值<span lang="EN-US">: "Unknown", "Yes" </span>和<span lang="EN-US"> "No" ) </span>来表示这种字段数据<span lang="EN-US">.</span></span></p> <p > </p> </td> <td valign="top" > </td> <td colspan="3" valign="top" > <h2 ><span Calibri',sans-serif; color: #2e75b5;" lang="EN-US">ORM</span><span 微软雅黑',sans-serif; color: #2e75b5;">属性约束条件：</span></h2> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">1.</span><span Calibri',sans-serif; color: red;" lang="EN-US">null </span></h3> <p ><span >如果为<span lang="EN-US">True</span>，<span lang="EN-US">Django </span>将用<span lang="EN-US">NULL </span>来在数据库中存储空值。 默认值是<span lang="EN-US"> False.</span></span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">2</span><span Calibri',sans-serif; color: red;" lang="EN-US">.blank </span><span 微软雅黑',sans-serif; color: #5b9bd5;">（</span><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">M</span><span 微软雅黑',sans-serif; color: #5b9bd5;" lang="EN-US">odelForm</span><span 微软雅黑',sans-serif; color: #5b9bd5;">验证的依据）</span></h3> <p ><span >如果为<span lang="EN-US">True</span>，该字段允许不填。默认为<span lang="EN-US">False</span>。</span></p> <p ><span >要注意，这与<span lang="EN-US"> null </span>不同。<span lang="EN-US">null</span>纯粹是数据库范畴的，而<span lang="EN-US"> blank </span>是数据验证范畴的。</span></p> <p ><span >如果一个字段的<span lang="EN-US">blank=True</span>，表单的验证将允许该字段是空值。如果字段的<span lang="EN-US">blank=False</span>，该字段就是必填的。</span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">3.</span><span Calibri',sans-serif; color: red;" lang="EN-US">max_lenght</span></h3> <p ><span >最大长度</span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">4.default </span></h3> <p ><span >字段的默认值。可以是一个值或者可调用对象。如果可调用 ，每有新对象被创建它都会被调用，如果你的字段没有设置可以为空，那么将来如果我们后添加一个字段，这个字段就要给一个<span lang="EN-US">default</span>值</span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">5.</span><span Calibri',sans-serif; color: red;" lang="EN-US">primary_key </span></h3> <p ><span >如果为<span lang="EN-US">True</span>，那么这个字段就是模型的主键。如果你没有指定任何一个字段的<span lang="EN-US">primary_key=True</span>，</span></p> <p ><span lang="EN-US">Django </span><span >就会自动添加一个<span lang="EN-US">IntegerField</span>字段做为主键，所以除非你想覆盖默认的主键行为，</span></p> <p ><span >否则没必要设置任何一个字段的<span lang="EN-US">primary_key=True</span>。</span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">6.unique </span></h3> <p ><span >如果该值设置为<span lang="EN-US"> True, </span>这个数据字段的值在整张表中必须是唯一的</span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">7.choices</span></h3> <p ><span >由二元组组成的一个可迭代对象（例如，列表或元组），用来给字段提供选择项。 如果设置了<span lang="EN-US">choices </span>，默认的表单将是一个选择框而不是标准的文本框，<span lang="EN-US"><br></span>而且这个选择框的选项就是<span lang="EN-US">choices </span>中的选项。</span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">8.db_index</span></h3> <p ><span >　　如果<span lang="EN-US">db_index=True </span>则代表着为此字段设置数据库索引。</span></p> <p ><span lang="EN-US"> </span></p> <p ><span lang="EN-US"> </span></p> <p ><span lang="EN-US"> </span></p> <p ><span lang="EN-US">DatetimeField</span><span >、<span lang="EN-US">DateField</span>、<span lang="EN-US">TimeField</span>这个三个时间字段，都可以设置如下属性。</span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">9.auto_now_add</span></h3> <p ><span lang="EN-US">    </span><span >配置<span lang="EN-US">auto_now_add=True</span>，创建数据记录的时候会把当前时间添加到数据库。</span></p> <p ><span lang="EN-US"> </span></p> <h3 ><span Calibri',sans-serif; color: #5b9bd5;" lang="EN-US">10.</span><span Calibri',sans-serif; color: red;" lang="EN-US">auto_now</span></h3> <p ><span lang="EN-US">    </span><span >配置上<span lang="EN-US">auto_now=True</span>，每次更新数据记录的时候会更新该字段，标识这条记录最后一次的修改时间。</span></p> </td> </tr> <tr > <td valign="top" > <p><span lang="EN-US"> </span></p> </td> <td valign="top" > </td> <td valign="top" > </td> <td valign="top" > </td> <td valign="top" > </td> </tr> <tr > <td valign="top" > <p><span lang="EN-US"> </span></p> </td> <td valign="top" > </td> <td valign="top" > </td> <td valign="top" > <h2 ><span 微软雅黑',sans-serif; color: #2e75b5;">附<span lang="EN-US">ORM</span>字段与数据库实际字段的对应关系<span lang="EN-US">:</span>：</span></h2> <p ><span 微软雅黑',sans-serif;" lang="EN-US">   </span><span Calibri',sans-serif;" lang="EN-US">'AutoField': 'integer AUTO_INCREMENT',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'BigAutoField': 'bigint AUTO_INCREMENT',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'BinaryField': 'longblob',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'BooleanField': 'bool',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'CharField': 'varchar(%(max_length)s)',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'CommaSeparatedIntegerField': 'varchar(%(max_length)s)',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'DateField': 'date',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'DateTimeField': 'datetime',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'DecimalField': 'numeric(%(max_digits)s, %(decimal_places)s)',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'DurationField': 'bigint',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'FileField': 'varchar(%(max_length)s)',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'FilePathField': 'varchar(%(max_length)s)',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'FloatField': 'double precision',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'IntegerField': 'integer',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'BigIntegerField': 'bigint',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'IPAddressField': 'char(15)',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'GenericIPAddressField': 'char(39)',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'NullBooleanField': 'bool',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'OneToOneField': 'integer',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'PositiveIntegerField': 'integer UNSIGNED',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'PositiveSmallIntegerField': 'smallint UNSIGNED',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'SlugField': 'varchar(%(max_length)s)',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'SmallIntegerField': 'smallint',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'TextField': 'longtext',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'TimeField': 'time',</span></p> <p ><span Calibri',sans-serif;" lang="EN-US">    'UUIDField': 'char(32)',</span></p> </td> <td valign="top" > </td> </tr> <tr > <td valign="top" > <p><span lang="EN-US"> </span></p> </td> <td valign="top" > </td> <td valign="top" > </td> <td valign="top" > </td> <td valign="top" > </td> </tr> </tbody> </table> <p> </p> <p class="MsoNormal"><span lang="EN-US"> </span></p> <br> <script type="text/javascript"> var cpro_id = "u6885494"; </script> <script type="text/javascript" src="//cpro.baidustatic.com/cpro/ui/cm.js"></script> </div> <div class="blog_tags"> <ul> <li><a href="https://www.php1.cn/tag/django" target="_blank" title="django">django</a></li> <li><a href="https://www.php1.cn/tag/char" target="_blank" title="char">char</a></li> <li><a href="https://www.php1.cn/tag/int" target="_blank" title="int">int</a></li> <li><a href="https://www.php1.cn/tag/sql" target="_blank" title="sql">sql</a></li> <li><a href="https://www.php1.cn/tag/datetime" target="_blank" title="datetime">datetime</a></li> <li><a href="https://www.php1.cn/tag/checkbox" target="_blank" title="checkbox">checkbox</a></li> <li><a href="https://www.php1.cn/tag/上传" target="_blank" title="上传">上传</a></li> <li><a href="https://www.php1.cn/tag/图片" target="_blank" title="图片">图片</a></li> <li><a href="https://www.php1.cn/tag/xml" target="_blank" title="xml">xml</a></li> </ul> </div> <div class="article_cmnt" style="display: none;"> <div class="cmnt_title">写下你的评论吧 !</div> <form action="" method="post"> <div class="cmnt_text"> <textarea class="ping-txt" onfocus="ck_txt(this);" onblur="ck_txt2(this);" id="ping-txt" name="ping-txt" >吐个槽吧,看都看了

书友33947127

这个家伙很懒，什么也没留下！

Tags | 热门标签

• int
• version
• regex
• ip
• export
• format
• bit
• sum
• less
• metadata
• go
• schema
• byte
• cSharp
• object
• uri
• loops
• dll
• python
• expression
• tree
• hashset
• buffer
• default
• split
• main
• list
• input
• replace
• python2

RankList | 热门文章

• 1NIO基础（第九天）
• 2win10 vs2019编译c++版本的numpy
• 3VMware安装CentOS时网络无法连接解决方案——桥接模式网络设置
• 4unity android 播放器,Unity3D 安卓视频播放插件 WRP Android Video Player Pro
• 5Springboot中使用Mongodb
• 6webpack4 踩坑記
• 7单例模式通过反序列化后就不再是单例了
• 8java窗口添加背景
• 9多态+菱形虚拟继承（下）
• 10c语言cls为什么没起作用,求解为什么我的程序，不能完成清屏操作 就是这个system(cls)...
• 11可以文本显示的公告栏的js代码_典型特效
• 12qtwebapp库的编译及简单使用
• 13大数据比较实用的分析模型有哪些？
• 14java异常(4)
• 15vue路由的两种模式怎么实现

PHP1.CN | 中国最专业的PHP中文社区 | DevBox开发工具箱 | json解析格式化 |PHP资讯 | PHP教程 | 数据库技术 | 服务器技术 | 前端开发技术 | PHP框架 | 开发工具 | 在线工具
Copyright © 1998 - 2020 PHP1.CN. All Rights Reserved | 京公网安备 11010802041100号 | 京ICP备19059560号-4 | PHP1.CN 第一PHP社区 版权所有