Traits don't support auxiliary constructors, nor do they accept an argument list for the primary constructor, the body of a trait.
Traits不支持辅助构造函数，它们也不支持在主构造函数，trait的主体里的参数列表。
Static methods that merely accept an argument or two, perform a calculation, and return a value based on nothing but those arguments are ideal.
仅接受一两个实参、执行计算，并仅依据那些实参返回值的静态方法是理想的。
It is highly likely that you will need to pass arguments to the server-side functions you create, so let's see how you would adapt one of the functions to accept and use an argument.
将参数传递到您创建的服务器端函数，这是很有可能的，所以，让我们来看看，如何改写一个函数来接受和使用参数。
To avoid this problem, you can create an interface (for example, Vehicle) and have your FrogMan class accept the Vehicle as a constructor argument, as in Listing 3.
为了避免这个问题，您可以创建一个接口(例如vehicle)，使frogman类接受Vehicle作为一个构造函数参数，如清单3所示。
“It’s an acute problem for food manufacturers who have to try to explain this, ” he said. “Consumers don’t accept any argument for higher prices.”
“食品生产商试图这样解释是个严重的问题”，他说，“消费者不接受任何关于涨价的说法”。
Our script will accept a single file as an argument, and will print out whether it appears to be a tarball.
我们的脚本将接受一个文件作为自变量，然后打印：该文件是否是一个tar文件。
Our script will accept a single file as an argument, and will print out whether it appears to be a tarball.
我们的脚本将接受一个文件作为自变量，然后打印：该文件是否是一个tar文件。
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