Menu
×
×
正确
let txt = "Hello World";
txt = txt.@(7)("Hello", "Welcome");
let txt = "Hello World";
txt = txt.replace("Hello", "Welcome");
不正确
点击 此处 重试 正确
下一题 ❯let txt = "Hello World"; txt = txt.w3exercise_input_no_0("Hello", "Welcome"); |