golang字符串拆分
s := strings.Split("a,b,c", ",")
golang在字符串中查找
// 1. Contains
res := strings.Contains(str, substr)
fmt.Println(res) // true
golang分割空间
someString := "one two three four "
words := strings.Fields(someString)
fmt.Println(words, len(words)) // [one two three four] 4