小编Sla*_* Th的帖子

我想将准备好的语句与rusqlite一起使用。ToSqlRusqlite 实现了String,&str以及许多其他类型的特征：

extern crate rusqlite;

use rusqlite::Connection;

fn main() {
    let mut connection = Connection::open("C:\\test_db.db").unwrap();

    let mut cached_statement = connection
        .prepare_cached("SELECT ?, ?, ? FROM test")
        .unwrap();

    let vec_values = vec![
        &"test1".to_string(),
        &"test2".to_string(),
        &"test3".to_string(),
    ];

    let rows = cached_statement.query(vec_values.as_slice()).unwrap();
}

这不会编译并出现错误：

extern crate rusqlite;

use rusqlite::Connection;

fn main() {
    let mut connection = Connection::open("C:\\test_db.db").unwrap();

    let mut cached_statement = connection
        .prepare_cached("SELECT ?, ?, ? FROM test")
        .unwrap();

    let vec_values = vec![ …