java.io.FileNotFoundException: F: 02-JavaSE每章作业 01-零基础作业 (拒绝访问。) at java.io.FileOutputStream.open0(Native Method) at java.io.FileOutputStream.open(FileOutputStream.java:270) at java.io.FileOutputStream.(FileOutputStream.java:213) at java.io.FileOutputStream. (FileOutputStream.java:162) at com.bjpowernode.javase.io.CopyAll.copyDir(CopyAll.java:35) at com.bjpowernode.javase.io.CopyAll.copyDir(CopyAll.java:70) at com.bjpowernode.javase.io.CopyAll.copyDir(CopyAll.java:70) at com.bjpowernode.javase.io.CopyAll.main(CopyAll.java:10) java.io.FileNotFoundException: F: 02-JavaSE每章作业 01-零基础作业 (拒绝访问。) at java.io.FileOutputStream.open0(Native Method) at java.io.FileOutputStream.open(FileOutputStream.java:270) at java.io.FileOutputStream. (FileOutputStream.java:213) at java.io.FileOutputStream. (FileOutputStream.java:162) at com.bjpowernode.javase.io.CopyAll.copyDir(CopyAll.java:35) at com.bjpowernode.javase.io.CopyAll.copyDir(CopyAll.java:70) at com.bjpowernode.javase.io.CopyAll.copyDir(CopyAll.java:70) at com.bjpowernode.javase.io.CopyAll.main(CopyAll.java:10) java.io.FileNotFoundException: F: 02-JavaSE每章作业 01-零基础作业 (拒绝访问。) at java.io.FileOutputStream.open0(Native Method) at java.io.FileOutputStream.open(FileOutputStream.java:270) at java.io.FileOutputStream. (FileOutputStream.java:213) at java.io.FileOutputStream. (FileOutputStream.java:162) at com.bjpowernode.javase.io.CopyAll.copyDir(CopyAll.java:35) at com.bjpowernode.javase.io.CopyAll.copyDir(CopyAll.java:70) at com.bjpowernode.javase.io.CopyAll.copyDir(CopyAll.java:70) at com.bjpowernode.javase.io.CopyAll.main(CopyAll.java:10)
报错原因：
代码片段中获取文件字节输出流的时候，所给的File类型变量destFile的值是目录路径名（正确应该是具体到某一个文件名），导致“拒绝访问”的典型报错！！！
