检索与字符串同名的变量

var obj = {
  myVariable: "Hello World!"
};

var variableName = "myVariable";
console.log(obj[variableName]);  // 输出：Hello World!

myVariable = "Hello World!"

variableName = "myVariable"
print(locals()[variableName])  # 输出：Hello World!

import java.lang.reflect.Field;

public class MyClass {
  public String myVariable = "Hello World!";
}

public class Main {
  public static void main(String[] args) throws NoSuchFieldException, IllegalAccessException {
    MyClass myObject = new MyClass();

    String variableName = "myVariable";
    Field field = myObject.getClass().getField(variableName);
    String value = (String) field.get(myObject);

    System.out.println(value);  // 输出：Hello World!
  }
}