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package com.company; //计算1+1/2+1/3+1/4....前20项 public class Main { public static void main(String arg[]) { double sum = 0, item = 1; int i = 1, n = 20 阅读全文
posted @ 2021-03-26 21:57
木子欢儿
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package com.company; //计算1+1/2!+1/3!+1/4!....前20项 public class Main { public static void main(String arg[]) { double sum = 0, item = 1; int i = 1, n = 阅读全文
posted @ 2021-03-26 21:51
木子欢儿
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package com.company; //计算8+88+888+8888+....前20项的和 //分析：规律 88=8*10+8 public class Main { public static void main(String arg[]) { long sum=0,a=8,item=a, 阅读全文
posted @ 2021-03-26 21:46
木子欢儿
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package com.company; import java.util.Scanner; public class Main { public static void main(String arg[]) { System.out.println("请输入一门成绩："); Scanner inp 阅读全文
posted @ 2021-03-26 21:38
木子欢儿
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