1. The first part describes Mathilde's "pain" and "dream". Although they belong to the "non-basic plot part", they are the "foundation" of the characters' misfortune; Just as she was suffering from the failure to realize her dream life, her husband received an invitation to attend the party; Just when Mrs. Loizai went to an evening party and was upset that there were no pearls for decoration, her girlfriend lent her the necklace. Just as she was "reveling" and "intoxicated" at the evening party, she was so happy that she lost her necklace. Just as Mrs. Loizai paid off the debt of the necklace on 10, she accidentally learned that the necklace was fake. This series of plot arrangements are all driven by the inner strength of the characters' personalities. The ending of the novel surprises not only the heroine, but also the readers. It strongly expresses personality. This seemingly unexpected thing is reasonable and very credible. Because, in the description, the author made three necessary foreshadowing and ingenious hints, and this foreshadowing has three times: the first time was the generous consent of his girlfriend when he borrowed the necklace; Looking for a necklace for the second time, the jewelry store owner said, "I only sell this box"; When returning the necklace for the third time, Mrs Frais didn't open the box. These show that the necklace is not real. As for whether it is ironic or not, the author depicts a vulgar petty bourgeois woman who lives in a capitalist society, envies vanity and pursues luxury. The hero's vanity is caused by capitalist society treating women as playthings. By describing the unfortunate experience of the hero, the author sharply satirizes the vanity of the bourgeoisie and curses and condemns the capitalist society. Although the necklace was lost by accident, it contained inevitable factors. And Mathilde's unique vanity inevitably drove her to borrow the necklace. In addition, her "fanaticism", "excitement", "addiction", "intoxication" and later "quick escape" are all easy to lose things in this intoxication and panic. Those ladies and gentlemen who always follow the maids or attendants around them don't have to do things themselves or worry about themselves. Everything moves naturally and calmly, and naturally you won't lose the necklace you wear around your neck. The appearance of these plots is driven by the strength of the characters, and their actions and ways of action are determined by their unique personalities. In a sense, these plots are all paving the way for the plot that she lost her necklace. The rationality and inevitability of losing the necklace is also based on Mrs. Loizai's character and her vanity. It was her vain personality that prevented her from telling the whole story to the friend who lent it to her at once. The author thinks that Mathilde's tragedy is accidental and is caused by a very small event. It can be seen from the article that the pursuit of vanity was the fashion of the society at that time. From her own point of view, her pursuit of vanity is persistent, so her tragedy is inevitable. Therefore, Mathilde's tragic fate is not only a tragedy of character, but also an inevitable product of the bourgeoisie's pursuit of vanity and luxury. If the loss of the necklace is accidental, then her tragedy is inevitable. Through an accidental sad story, this novel reveals the inevitable tragic fate of petty-bourgeois women who pursue vanity, and it is also a curse and ridicule to capitalist society.