分割字符串
strs := strings.Split("this is a string", " ")
截取字符串
str1 := "this is a string"
strs := str1[0:5]
拼接字符串
strs = strings.Join(strs,"_")
替換字符串
str := strings.Replace("this is a string", " ", "_", -1)
-1表示所有的空格都替換爲下劃線,如果是正數(n),就表示有n個空格替換爲下劃線
大小寫轉化
每個單詞首字母大寫
str := strings.toTitle("this is a string")
全部轉大寫
str := strings.toUpper("this is a string")
全部轉小寫
str := strings.toLower("THIS IS A STRING")