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For example, if we want to implement a JS function, Such as form validation, Then if we don't use the policy pattern in javascript described in the previous chapter to solve the form validation encapsulation code, It is a temporary form validation function written by itself. Certainly without any encapsulation, Then at this time, we will pop up a prompt to the user for whether the two values are equal. If there is a form verification on another page, their judgment method and business logic are basically the same, but the comparison parameters are different. Should we consider writing a form verification code again? So now we can consider using the template method pattern to solve this problem. Common methods are extracted, and different methods are implemented by specific subclasses. This design code also has the advantages of stronger scalability and better code ~I. Chinese citizens who have not reached the national legal retirement age at the end of the year when they sign up, have the qualifications for teachers stipulated in the Teachers Law and are willing to work as teachers.朱珠和王旺一家住在西北地区的沙漠边上，为了治沙，朱珠和王旺一家人开始植树。他们冒风沙、抗烈日，肩扛人拉运树苗，一桶一桶挑水灌溉，每天往返数十里。持之以恒数十年，他们的辛劳初见成效。然而王旺不幸患了骨癌，不久就去世了。朱珠面对如此打击并没有屈服，她继续带领一家老小植树治沙，凭着不屈不挠的精神，将万亩不毛之地变成了绿色的海洋。1-5 skill changes only red lotus and iron painting silver hook are changed to sweep Liuhe (other skills can be changed) and blue blood flag (required)7. After hitting point 3, then hit point 4.5 in sequence. 4.5 Near, don't confuse the order正是因此，才让汉国人提心吊胆。