IOException cannot be resolved to a typeIOException cannot be resolved to a type这是在提示你要
"IOException cannot be resolved to a type"
"IOException cannot be resolved to a type"
这是在提示你要导入IO异常类
加上下面的语句就不报错了：
import java.io.IOException;
"IOException cannot be resolved to a type"
"IOException cannot be resolved to a type"
这是在提示你要导入IO异常类
加上下面的语句就不报错了：
import java.io.IOException;