V语言,感觉厉害。。。。。。
人家的Helloworld只需这样
fn main() {
println('hello world')
}
就是短小精悍。
居然还有泛型,这个可是连我们可以到处GO的都没有。
struct Repo {
db DB
}
fn new_repo(db DB) Repo {
return Repo{db: db}
}
// This is a generic function. V will generate it for every type it's used with.
fn (r Repo) find_by_id(id int) T? {
table_name := T.name // in this example getting the name of the type gives us the table name
return r.db.query_one('select * from $table_name where id = ?', id)
}
fn main() {
db := new_db()
users_repo := new_repo(db)
posts_repo := new_repo(db)
user := users_repo.find_by_id(1)?
post := posts_repo.find_by_id(1)?
}
V语言官网地址:https://vlang.io
V语言Github地址:https://github.com/vlang/v