多线程依次循环打印26个英文字母

[{"title":"（ 21 个子文件 19KB ） 多线程依次循环打印26个英文字母","children":[{"title":"ThreadAndDataStructure","children":[{"title":"bin","children":[{"title":"com","children":[{"title":"zhangjinpeng","children":[{"title":"CustomRingArrayQueue.class <span style='color:#111;'> 2.67KB </span>","children":null,"spread":false},{"title":"TaskOrder.class <span style='color:#111;'> 456B </span>","children":null,"spread":false},{"title":"Monitor.class <span style='color:#111;'> 1.96KB </span>","children":null,"spread":false},{"title":"TestDemo.class <span style='color:#111;'> 2.44KB </span>","children":null,"spread":false},{"title":"TaskC.class <span style='color:#111;'> 1.95KB </span>","children":null,"spread":false},{"title":"TaskA.class <span style='color:#111;'> 2.69KB </span>","children":null,"spread":false},{"title":"TaskB.class <span style='color:#111;'> 2.05KB </span>","children":null,"spread":false},{"title":"AlphabetUtil.class <span style='color:#111;'> 921B </span>","children":null,"spread":false},{"title":"Task.class <span style='color:#111;'> 336B </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true},{"title":".settings","children":[{"title":"org.eclipse.jdt.core.prefs <span style='color:#111;'> 629B </span>","children":null,"spread":false}],"spread":true},{"title":"src","children":[{"title":"com","children":[{"title":"zhangjinpeng","children":[{"title":"TaskB.java <span style='color:#111;'> 830B </span>","children":null,"spread":false},{"title":"TaskA.java <span style='color:#111;'> 1.26KB </span>","children":null,"spread":false},{"title":"Task.java <span style='color:#111;'> 195B </span>","children":null,"spread":false},{"title":"TaskOrder.java <span style='color:#111;'> 259B </span>","children":null,"spread":false},{"title":"AlphabetUtil.java <span style='color:#111;'> 322B </span>","children":null,"spread":false},{"title":"TestDemo.java <span style='color:#111;'> 2.06KB </span>","children":null,"spread":false},{"title":"TaskC.java <span style='color:#111;'> 768B </span>","children":null,"spread":false},{"title":"Monitor.java <span style='color:#111;'> 1.43KB </span>","children":null,"spread":false},{"title":"CustomRingArrayQueue.java <span style='color:#111;'> 3.79KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true},{"title":".project <span style='color:#111;'> 398B </span>","children":null,"spread":false},{"title":".classpath <span style='color:#111;'> 301B </span>","children":null,"spread":false}],"spread":true}],"spread":true}]