优化下面的代码，使其更加简洁if(name.indexOf("风机") != -1){ return "fan"; }else if(name.indexOf("补光灯") != -1){ return "lamp"; } else if (name.indexOf("天窗") != -1) { return "window"; } else if (name.indexOf("卷帘") != -1) { return "shutter"; } else if (name.indexOf("水肥机") != -1) { return "machine"; } else if (name.indexOf("水阀") != -1) { return "valve"; } else if (name.indexOf("湿帘") != -1) { return "curtain"; } else if (name.indexOf("卷被") != -1) { return "quilt"; }

可以使用 switch/case 语句来简化代码，如下所示：

switch(name) {
  case "风机":
    return "fan";
  case "补光灯":
    return "lamp";
  case "天窗":
    return "window";
  case "卷帘":
    return "shutter";
  case "水肥机":
    return "machine";
  case "水阀":
    return "valve";
  case "湿帘":
    return "curtain";
  case "卷被":
    return "quilt";
  default:
    return "";
}

这样可以将多个 if/else if 语句简化为一个 switch/case 语句，使代码更加简洁易读。

相关问题

return this.newList = this.list.filter((i) => { return i.name.indexOf(this.inputValue) !== -1;

});This code is written in JavaScript and it filters through an array of objects called "list". The filter function takes in a callback function that checks if an object's "name" property includes the value of "inputValue". If the name includes the input value, it returns true and that object is added to a new array called "newList". The "!== -1" checks if the input value is not found in the name property. If it is not found, it returns false and that object is not added to the new list. Finally, the "newList" array is assigned to "this.newList".

auto Movie::operator==(const Movie& another) -> bool { if (another.name != this->name && another.name != "*") return false; if (another.director != this->director && another.director != "*") return false; if (another.actor != this->actor && another.actor != "*") return false; if (another.time != this->time && another.time != "*") return false; return true; } 是什么意思

这段代码定义了一个名为 `operator==` 的函数，它是一个 `Movie` 类的成员函数，用于判断两个电影对象是否相等。

该函数接受一个 `const Movie&` 类型的参数 `another`，表示另一个电影对象。

函数内部会依次比较两个电影对象的名称、导演、演员和上映时间，如果它们不相等且 `another` 中对应的属性不是 `*`，则返回 `false`。如果所有属性都相等或者 `another` 中对应的属性是 `*`，则返回 `true`。

这个函数重载了 `==` 运算符，使得两个 `Movie` 类型的对象可以直接使用 `==` 运算符进行比较。比如，`Movie m1, m2; bool result = m1 == m2;` 就是在调用这个函数。