如何删除map中的key

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if (wxqjxxTempMap != null) {
					Iterator iterator = wxqjxxTempMap.keySet().iterator();
					while (iterator.hasNext()) { 
					    String key = (String) iterator.next(); 
					    if (temp.getTcxWxqjxxTempId().equals(key)) { 
					       iterator.remove();        //添加该行代码 
					       wxqjxxTempMap.remove(key);
					     } 

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