be a string
是 字 符串
If the element is a string , you can test whether the length is zero. The key has to be a string , the value can be any type:. Must be a string and the value can be of any type. Name required Name is required and must be a string . Advertiser Representative Name is required and must be a string .
属性的键必须是字符串 或者Symbol(通常是字符串)。 Property keys must be strings or symbols(usually strings). . Property keys must be strings or symbols(usually strings). . In JSON, strings are enclosed in double quotation marks:. 属性键必须是字符串 或者符号(symbol),通常都是字符串。 Property keys must be strings or symbols(usually strings). . 如果第一个操作对象是字符串 ,那么%就是格式操作符。 But when the first operand is a string ,% is the format operator. 当replace的第一个参数是字符串 时,它只会查找第一个匹配项。 When the first argument of replace is a string , it only looks for the first match. 你知道'Frankenstein'这个键在表中存储的是字符串 ,即使lookup方法声明返回的是Object。 You know that the value stored in the table under‘Frankenstein' is a string , even though the lookup method is declared to return Object. Vendor”元素包含一个名为“Name”的单一元素,它是字符串 。 The Vendor element contains a single element called Name, which is a string . 此操作返回false,因为第一个操作数是数字,第二个操作数是字符串 。 This operation returns false because the first operand is a number and the second is a string . 如果是字符串 ,则dateVal按照parse方法中的规则进行解析。 If a string , dateVal is parsed according to the rules in the parse method. 本次调用的结果是字符串 :"two,four,six,eight"。 The result of this call is the string ,"two, four, six, eight".我们知道它们是字符串 是因为它们是用引号"括起来的。 We know they are strings of characters because they're enclosed in quotation marks". 在这里编译器可以推导出first和second必然是字符串 ,因为这个lambda表达式将赋给一个字符串比较器。 Here, the compiler can deduce that first and second must be strings because the lambda expression is assigned to a string comparator. Lucene不关心这些值是字符串 、数字或日期--所有的值都被当做不透明字节。 Lucene doesn't care if the values are strings or numbers or dates- all values are just treated as opaque bytes. Cron的表达式是字符串 ,实际上是由七子表达式,描述个别细节的时间表。 Cron-Expressions are strings that are actually made up of seven sub-expressions, that describe individual details of the schedule. 与此类似,如果使用的数据只可能是字符串 ,则VBScript将按字符串处理。 Similarly, if you're working with data that can only be string data, VBScript treats it as string data. 表演艺术,无论是字符串 ,乐队,合唱团或者是修道院中学课程的重要组成部分。 Performing Arts, whether strings , band, or choir, is an essential part of The Priory middle school curriculum. Lucene不关心值到底是字符串 、数字还是日期--所有的值都以不可理解的比特值(opaque)对待。 Lucene doesn't care if the values are strings or numbers or dates- all values are just treated as opaque bytes. 另一方面,C对数组的处理,总体上(不仅仅是字符串 )对优化和未来的扩展有不幸的影响。 On the other hand, C's treatment of arrays in general(not just strings ) has unfortunate implications both for optimization and for future extensions. Then that character needs to be followed by h, followed by end of string . 变量的另一个特性就是它们能够存储任何的东西--不只是字符串 和数字。 Another special thing about variables is that they can contain just about anything- not just strings and numbers. 从左到右索引默认0开始的,最大范围是字符串 长度少1. From left to right index starting with 0, the maximum range is less string length 1. In the general case, leaves and node values do not have to be strings . Eval函数可以用来把一个日期从一种格式(总是字符串 )转换为数值表达式或数字。 This can be useful when converting a date from a form(always a string ) into a numerical expression or number.
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