golang中strings包学习第二篇

func Join(a []string, sep string) string

s := []string{"foo", "bar", "baz"}
fmt.Println(strings.Join(s, ", "))

foo, bar, baz

func Split(s, sep string) []string

fmt.Printf("%q\n", strings.Split("a,b,c", ","))
fmt.Printf("%q\n", strings.Split("a man a plan a canal panama", "a "))
fmt.Printf("%q\n", strings.Split(" xyz ", ""))
fmt.Printf("%q\n", strings.Split("", "Bernardo O'Higgins"))

["a" "b" "c"]
["" "man " "plan " "canal panama"]
[" " "x" "y" "z" " "]
[""]

func genSplit(s, sep string, sepSave, n int) []string

sepSave是被分割的位置在sep所在位置的偏移，被用于SplitAfter和SplitAfterN这些函数，使用len(sep)作为sepsave可以返回sep最后一个字符前面的字串作为一个分割。

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