为了在编程中实现这一点,我们需要使用控制语句来检查条件是否满足,如果是,则执行此操作,如果没有则跳过此步骤。在kotlin 中,我们使用表达式来控制程序中的流。在本教程中,我们将学习 Kotlin 中使用的几种表达式。 if表达式 if..else表达式 if..else if..else表达式 嵌套表达式 1. Kotlin -if表达 if表达很容易理...
/*This class is a scanner generated byJFlex1.7.0-SNAPSHOTfrom the specification file /Users/endermz/projects/kotlin/compiler/frontend/src/org/jetbrains/kotlin/lexer/Kotlin.flex */class _JetLexer implements FlexLexer { //返回当前词法的状态 public final int yystate() { return zz...
如何在android / kotlin中从firebase中读取子数据 如何在Java中读取excel中的特定行? 如何在python中读取所有zipfile 如何在ruby中读取来自STDIN的非常长的字符串? 如何在Kotlin中从scanner读取不同的输入格式? 如何在Kotlin中向StringBuilder追加新行 页面内容是否对你有帮助? 有帮助 没帮助 ...
reader.nextInt()reads the next integer.reader.next()reads the next String. reader.nextFloat() reads the next float and so on.reader.nextLine()passes the Scanner to the nextLine and also clears the buffer. The following code demonstrates reading different types of inputs inside a print statemen...
2.1.2 词法分析器_JetLexer JFlex会读取配置文件并生成一个词法分析器(扫描器),在Kotlin编译器中对应_JetLexer /** * This class is a scanner generated by * JFlex 1.7.0-SNAPSHOT * from the specification file /Users/endermz/projects/kotlin/compiler/frontend/src/org/jetbrains/kotlin/lexer/Kotlin...
Scannerclass Note: User input requires a command line tool. You can either use REPL or IntelliJ. Let’s use IntelliJ here. Using readLine() readLine()returns the value of the type String? in order to deal with null values that can happen when you read the end of file etc. The followin...
CONFIG_LOCATION_DELIMITERS ) val databaseBeanName = getDatabaseBeanName(importingClassMetadata, registry) val scanner = ClassPathMapperScanner(registry) val dataSourceBeanName = dataSourceName(name) val sqlSessionFactoryBeanName = sqlSessionFactoryName(name) val configurationBeanName = configurationFactory...
*/ private fun localizationString(): String { val localizationData = StringBuilder() Scanner(inputFile).use { localizationReader -> while (localizationReader.hasNextLine()) { val data: String = localizationReader.nextLine() localizationData.appendLine(data) } } return localizationData.toString...
Kotlin 是一种编译型的静态类型语言,这可能会给习惯于解释型、动态类型的 Python 用户带来一些初始障碍。本文档旨在解释 Kotlin 的大部分语法、概念以及与 Python 中相应概念的比较。 Kotlin 可以为多个不同平台编译。在本文档中,假定目标平台是 Java 虚拟机,它提供了一些附加功能——尤其是会将代码编译为 Java 字节...
val: Used for read-only properties that are initialized at runtime. It can hold any value, including one determined by a function call. const val: Used for compile-time constants. It must be of a primitive or String type and is initialized at compile time. ...