前言
Github:https://github.com/HealerJean
只需要在case :後面加上{ }中括號,使變量成爲局部變量就好了
報錯的顯示
FileBusinessOrigin fileBusinessOrigin = FileBusinessOrigin.AUTH;
switch (fileBusinessOrigin) {
case CONTRACT:
String abc = "";
break;
case AUTH:
//報錯
// String abc = "";
break;
default:
break;
}
解決方案:加上{}
switch (fileBusinessOrigin) {
case CONTRACT: {
String abc = "";
System.out.println(abc);
break;
}
case AUTH: {
String abc = "";
System.out.println(abc);
break;
}
default:
break;
}