/
KotlinTip1.kt
41 lines (36 loc) · 1.03 KB
/
KotlinTip1.kt
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package com.sw.kotlin.tip1
/*
* kotlin对字符串的加强,三个引号"""中可以包含换行、反斜杠等等特殊字符
* */
fun testString() {
val str1 = "abc"
val str2 = """line1\n
line2
line3
"""
val js = """
function myFunction()
{
document.getElementById("demo").innerHTML="My First JavaScript Function";
}
""".trimIndent()
println(str1)
println(str2)
println(js)
}
/*
* kotlin字符串模版,可以用$符号拼接变量和表达式
* */
fun testString2() {
val strings = arrayListOf("abc", "efd", "gfg")
println("First content is $strings")
println("First content is ${strings[0]}")
println("First content is ${if (strings.size > 0) strings[0] else "null"}")
}
/*
*Kotlin中,美元符号$是特殊字符,在字符串中不能直接显示,必须经过转义,方法1是用反斜杠,方法二是${'$'}
* */
fun testString3() {
println("First content is \$strings")
println("First content is ${'$'}strings")
}