In Vimscript, as in c, only the numeric value zero is false in a Boolean context; any non-zero numeric value-whether positive or negative-is considered true.

和c一样，在Vimscript中，对于布尔值来说，只有数值0为假；任何非0数值—不管是正数还是负数—都为真。

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The value you specify with a parameter can be a free-form string, a number (including specialized numeric values, such as IP addresses), a Boolean value, a variable, or a list.

您指定的参数Value可以是自由格式的字符串、数字(包括特殊数值，如IP地址)、boolean值、变量或列表。

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Other convenience methods are implemented for retrieving object instances of the numeric and Boolean types by means of their fully qualified name.

实现了其它一些便利方法，通过其全限定名来检索numeric和boolean类型的对象实例。

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