注意，在清单4中加下划线的两个字符在Eclipse中加了下划线，提示语法不正确。
Notice that two characters underlined in Listing 4 get underlined in Eclipse, notifying you of incorrect syntax.
注意，在清单4中加下划线的两个字符在Eclipse中加了下划线，提示语法不正确。
Notice that two characters underlined in Listing 4 get underlined in Eclipse, notifying you of incorrect syntax.
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