username VARCHAR UNIQUE NOT NULL, email VARCHAR UNIQUE NOT NULL, password VARCHAR NOT NULL, createdAt TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP );CREATE TABLE IF NOT EXISTS notes ( id SERIAL PRIMARY KEY, message VARCHAR NOT...
AI代码解释 --backend/migrations/_schema.sqlDROPTABLEIFEXISTSsessions;CREATETABLEIFNOTEXISTSusers(idSERIALPRIMARYKEY,usernameVARCHARUNIQUENOTNULL,emailVARCHARUNIQUENOTNULL,passwordVARCHARNOTNULL,createdAtTIMESTAMPWITHTIMEZONEDEFAULTCURRENT_TIMESTAMP);CREATETABLEIFNOTEXISTSnotes(idSERIALPRIMARYKEY,messageVARCHARNOTNULL...
211. Create folder Create the folder at path on the filesystem 创建文件夹 代码语言:javascript 代码运行次数:0 运行 AI代码解释 package main import ( "fmt" "os" ) func main() { path := "foo" _, err := os.Stat(path) b := !os.IsNotExist(err) fmt.Println(path, "exists:", b) ...
CREATE TABLE IF NOT EXISTS sessions ( id SERIAL PRIMARY KEY, session_id VARCHAR NOT NULL UNIQUE, user_id INT NOT NULL UNIQUE ); 迁移会自动运行。但如果大家想要手动操作,也可以使用 sqlx migrate run --database-url。这种操作之所以可行,是因为我们已经将 SQL 文件设置为幂等,就是说只要已经存在该表...
CREATE TABLE IF NOT EXISTS sessions (id SERIAL PRIMARY KEY,session_id VARCHAR NOT NULL UNIQUE,user_id INT NOT NULL UNIQUE); 迁移会自动运行。但如果大家想要手动操作,也可以使用 sqlx migrate run --database-url 。这种操作之所以可行,是因为我们已经将 SQL 文件设置为幂等,就是说只要已经存在该表、则...
Create the folder at path on the filesystem 创建文件夹 package main import ( "fmt" "os" ) func main() { path := "foo" _, err := os.Stat(path) b := !os.IsNotExist(err) fmt.Println(path, "exists:", b) err = os.Mkdir(path, os.ModeDir) if err != nil { panic(err) ...
use std::path::Path;fnmain()->Result<(),Box<dyn std::error::Error>>{ ffmpeg::init().unwrap();letsource_url="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4";letframes_folder="frames_ffmpeg";// Create the frames folder if it does not existif!Path...
use std::path::Path; fnmain()->Result<(),Box<dyn std::error::Error>>{ ffmpeg::init().unwrap(); letsource_url="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4"; letframes_folder="frames_ffmpeg"; // Create the frames folder if it does not exist if...
("failed to create decoder");letoutput_folder="frames_video_rs";create_dir_all(output_folder).expect("failed to create output directory");let(width,height)=decoder.size();letframe_rate=decoder.frame_rate();// Assuming 30 FPS if not availableletmax_duration=20.0;// Max duration in ...
if2: Renamed function name to foo_if_fizz. move_semantics: Clarified some hints. quiz1: Renamed the function name to be more verbose. structs1: Use an integer type instead of strings. Renamed "unit structs" to "unit-like structs", as is used in the book. structs3: Added the panic!