反斜线使用注意：
object A {
def main(args: Array[String]): Unit = {
val str = "\""
val str1 = "\\\""
println(str)
println(str1)
println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
val a1 = "{\\\"userID\\\":\\\"1\\\",\\\"NewStepNum\\\":\\\"10001\\\"}"
// val a = "{\\"userID\\":\\"1\\",\\"NewStepNum\\":\\"10001\\"}"
val a2 = "{\"userID\":\1 \",\"NewStepNum\":\"10001\"}"
println(a1)
println(a2)
}
}
- 执行结果
"
\"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
{\"userID\":\"1\",\"NewStepNum\":\"10001\"}
{"userID":\1 ","NewStepNum":"10001"}
