定义字符串
# 一般字符串
name := "lilei"
# 多行字符串
usage := `hello,
my name is lilei
i'm a boy.`
fmt.Println("name:", name)
fmt.Println("usage:", usage)
字符串长度及遍历字符串
name := "lilei"
nameLen := len(name)
fmt.Println("name length:" nameLen)
for i := 0; i < len(name); i++ {fmt.Printf("i: %d, v: %c\n", i, name[i])
}
拼接字符串
i, j := "hello", "world"
fmt.Println("i+j=", i+j)
定义常量
const ADDRESS := "beijing"
fmt.Println("address:", ADDRESS)