Examples of using If a class in English and their translations into Chinese
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Programming
If a class cannot be made immutable, limit its mutability as much as possible.
如果类不能做成不可变的，但也应该尽量限制他的可变性。If a class has 3 or 2 students the teaching hours will be reduced to 3 hours per day.
如果上课人数只有1或2名学生，那教学时间会缩短为每天2个小时。However, if a class exists named Startup{EnvironmentName}(for example StartupDevelopment), and the ASPNETCORE_ENVIRONMENT environment variable matches that name, then that Startup class is used instead.
然而，如果一个类的命名存在Startup{EnvironmentName}（例如StartupDevelopment），并且Hosting:Environment环境变量和它的名称相匹配，那么则使用那个Startup类。For example if a class implements a method but simply throws then the caller will need to know that this method shouldn't actually be called.
例如，如果一个类实现了一个方法，但只是简单的抛出异常，那么调用方将需要知道实际上不应该调用这个方法。If a class has no modifier(the default, also known as package-private), it is visible only within its own package.
如果一个类没有修饰符（默认，也称为package-private），它只能在它自己的包中可见（包是相关类的命名组。However, if a class exists named Startup{EnvironmentName}(for example StartupDevelopment), and the ASPNETCORE_ENVIRONMENT environment variable matches that name, then that Startup class is used instead.
然而，如果一个类的命名存在Startup{EnvironmentName}(例如，StartupDevelopment)，并且ASPNETCORE_ENVIRONMENT环境变量和它的名字相匹配，那么则会使用那个Startup类。What should you do if a class is closed?
If a class is red, the class is full.
如果您是班级成员，教室很拥挤。Where do I find out if a class will run?
我该如何知道某课程是否会开展？?What if a Class 1 outbreak has already begun and is going unchecked?
如果一场等级1的爆发已经开始且未被阻碍?If a class does too many things it also violates the Single Responsibility Principle.
而如果一个类做了太多的事情，也就说明其违反了单一职责原则。If a class cannot be made immutable, limit its mutability as much as possible.
如果一个类不能设计为不可变类，那么也要尽可能地限制它的可变性。If a class includes abstract methods, the class itself must be declared abstract, as in.
如果一个类包含抽象方法，那么该类本身_必须声明为抽象的_，如下所示：.If a class includes abstract methods, then the class itself must be declared abstract, as in.
如果一个类包含抽象方法，那么该类本身_必须声明为抽象的_，如下所示：.If a Class II device fails, there is a low risk of causing serious injury to the patient.
If a class meets ONLY on Wednesday, use the matching Monday class slot to determine final exam time.
如果一个类只能满足在星期四，星期二使用匹配槽类，以确定结束考试时间。However, if a Class B network was assigned(65,536 addresses), 62,000 addresses would be wasted.
另外的选择是使用一个B类地址（65534个地址），但却浪费了65234个地址。If a class does not perform all the behaviors of the interface, the class must declare itself as abstract.
如果一个类没有实现接口中的所有行为，这个类就必须声明为abstract类。In Loader if a class is added according to its need in program, performance is increased as only specific file is included.
在Loader中，如果根据程序中的需要添加类，则性能会增加，因为只包含特定文件。What if a Class 2 or even Class 3 outbreak has begun in a totalitarian country where the press is highly censored?
如果一场等级2或甚至等级3的爆发已经在一个极权国家发生而且消息被强力加以压制?
