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Francis 2020-03-13 12:06:49 +08:00 committed by GitHub
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@ -75,7 +75,7 @@ int main(){
}
```
<p><font style="color:red">小结：可以发现未被const修饰的变量不需要extern显示声明！而const常量需要显示声明extern，并且需要做初始化！因为常量在定义后就不能被修改，所以定义时必须初始化。</font></p>
<p><font style="color:red">小结：可以发现未被const修饰的变量不需要extern显式声明！而const常量需要显式声明extern，并且需要做初始化！因为常量在定义后就不能被修改，所以定义时必须初始化。</font></p>
## 4.定义常量
```c++
@ -402,4 +402,4 @@ static int ap;
int Apple::ap=666
```
对于此项，c++11不能进行声明并初始化，也就是上述使用方法。
对于此项，c++11不能进行声明并初始化，也就是上述使用方法。