模板字面量（模板字符串）
JavaScript Template Literals (Template Strings) Template literals, introduced in ES6 (ES2015), are an improved way to work with strings in JavaScript. They provide several powerful features over...
JavaScript模板字面量是ES6引入的字符串处理方式，使用反引号（`）定义，支持多行字符串、插值和表达式求值，简化了字符串拼接，提高了可读性，适用于HTML模板和条件渲染等场景。
