package com.heima;
import java.util.HashMap;
public class test5 {
public static void main(String[] args) {
HashMap<String, Integer> map = new HashMap<>();
map.put("张三", 23);
map.put("李四", 18);
map.put("王五", 28);
map.put("赵六", 32);
for (String key /*临时变量*/ : map.keySet() /*容器名*/) {
System.out.println(key + "=" + map.get(key));
}
}
}
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