F#字符串连接示例
F#允许我们使用+(加号)运算符连接两个字符串。
let StringExample = let s = "Hello" s+" "+"FSharp" printf "%s" StringExample
输出：
Hello FSharp
F#减法示例
let StringExample (s1:string):string = printf "%s" (s1.Substring(2)) s1.[2..6] // You can get substring by passing starting and ending index. printf "%s" (StringExample "F Sharp")
输出：
Sharp Sharp
f#使用Char()方法获取给定索引的CHAR示例
let StringExample (s1:string) (index :int) = s1.Chars(index) let result = StringExample "FSharp" 5 printf "%c" result
输出：
p
F#字符串比较示例
在F#中，我们可以使用equals()方法或比较(=)运算符来比较两个字符串。
let stringExample = let s1:string = "hello"; let s2:string = "hello"; let s3:string = "csharp"; printfn "%b" (s1.Equals(s2)) printfn "%b" (s1.Equals(s3)) printfn "%b" (s1=s2) printfn "%b" (s1=s3)
输出：
true false true false
F#字符串包含示例
The Contains () method in F# searches the specified string in the given string.
let StringExample =
let s1:string = "Hello FSharp"
printfn "%b" (s1.Contains("FS"))
printfn "%b" (s1.Contains(".Net"))
输出：
true false
F#string trim()示例
F#的Trim方法删除开始和结束空格。
let StringExample = let s:string = "Hello" printfn "%s" (s+" FSharp") printfn "%s"(s.Trim()+"FSharp")
输出：
Hello FSharp HelloFSharp
