PS F:\learn\rustlearn> rustc learn28.rs PS F:\learn\rustlearn> ./learn28.exe 精通rust:5 67.98 書名:精通rust 數量:5 價格:67.98 精通rust(第2版):25 76.15 PS F:\learn\rustlearn> #[derive(Debug,PartialEq)] struct BookInfo(&'static str,i32,f32, ); impl BookInfo{fn new(name:&'static str,count:i32,price:f32)->Self{return BookInfo(name,count,price);}fn name(&self){println!("書名:{}",self.0);}fn price(&self){println!("價格:{}",self.2);} fn count(&self){println!("數量:{}",self.1);}fn set_name(&mut self,name:&'static str){self.0=name;} fn add_count(&mut self,add_n:i32){self.1=self.1+add_n;} fn set_price(&mut self,price:f32){self.2=price;} fn print_book_info(&self){println!("{}:{} {}",self.0,self.1,self.2); } } fn main(){let mut book1=BookInfo::new("精通rust",5,67.98);book1.print_book_info();book1.name();book1.count();book1.price();book1.set_name("精通rust(第2版)");book1.add_count(20);book1.set_price(76.15);book1.print_book_info(); } 與50位技術專家面對面20年技術見證，附贈技術全景圖

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