
java.util.Map<String, String> map1 = new HashMap<String,String>();
map1.put("qq", "qfjhfhgf");
map1.put("ww", "wjhmfugf");
map1.put("ee", "ebncvhfg");
map1.put("rr", "ruyjt");
map1.put("tt", "tbjvn");
map1.put("yy", "yiukfyu");
Set<String> ser = map1.keySet();
Iterator<String> it = ser.iterator();
System.out.println("map1的长度是: "+map1.size());
while(it.hasNext()) {
String str6 = it.next();
String str7 = map1.get(str6);
System.out.println("key="+it.next()+"; value="+map1.get(it.next()));
map1.put("qq", "qfjhfhgf");
map1.put("ww", "wjhmfugf");
map1.put("ee", "ebncvhfg");
map1.put("rr", "ruyjt");
map1.put("tt", "tbjvn");
map1.put("yy", "yiukfyu");
Set<String> ser = map1.keySet();
Iterator<String> it = ser.iterator();
System.out.println("map1的长度是: "+map1.size());
while(it.hasNext()) {
String str6 = it.next();
String str7 = map1.get(str6);
System.out.println("key="+it.next()+"; value="+map1.get(it.next()));
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while(it.hasNext()) {
String str6 = it.next();
String str7 = map1.get(str6);
System.out.println("key="+str6+"; value="+str7);
}
String str6 = it.next();
String str7 = map1.get(str6);
System.out.println("key="+str6+"; value="+str7);
}
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为什么换成第二种写法就能正常显示了啊 ?