比如你简单修改变量的类型和方法的名字，这样程序就可以做实数的加法了，如图2 - 3。

You could, for example, change this program so that it added two real Numbers simply by changing the types of the variables and the names of the input methods, as shown in Figure 2-3.

youdao

比如你简单修改变量的类型和方法的名字，这样程序就可以做实数的加法了，如图2 - 3。

You could, for example, change this program so that it added two real Numbers simply by changing the types of the variables and the names of the input methods, as shown in Figure 2-3.

youdao