[TOC] ### 指針賦值 ``` let s1 = String::from("hello"); let s2 = s1; println("s1 = {}, s2 = {}", s1, s2); //報錯s1^^ value borrowed here after move //但是給s2定義變量時 let s2 = s1.clone(); //輸出的時候不會出錯 ``` ### 普通類型賦值 ``` let s1 = 5 let s2 = s1; println("s1 = {}, s2 = {}", s1, s2); //不會出問題 ```