import math a = [p for p in range(2, 100) if 0 not in [p % d for d in range(2, int(math.sqrt(p)) + 1)]] print(a) #输出结果 #[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97]
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><style type="text/css"&g
/** *把1到100之间的数的偶数相加 */ class Demo{ public static void main(String[] args){ int i =1; int sum = 0; do{ if(i % 2 != 0){ sum += i; } //累加器需要在if语句外面 i++; }while(i <= 100); System.out.println(sum); } }
#-*- coding:UTF-8 -*- #环境:python3 print("Enter the numbers between 1 and 100:") enterList=[] #记录输入的元素 while 1: a = int(input(">>>")) #将输入转换为int型 if a == 0: print ("Your input:",enterList) break #结束输入 if a<1 or a&g
declare i number:=1; j number:=0; sum1 number:=0;begin while(i<100) loop i:=i+1; j:=2; while(mod(i,j)!=0) loop j:=j+1; if(i=j) then exit; end if; end loop; if(i=j) then sum1:=sum1+i; DBMS_OUTPUT.PUT_LINE(i); end if; end loop; DBMS_OUTPUT.PUT_LINE(SUM
代码如下: import random n = 0 sum = 0 while n < 10: num = random.randint(1, 100) sum = sum + num n += 1 print(num, end=",") print() print("10个数的和为:%d" % sum) print("10个数的平均值为:%.2f" % (sum / 10)) 运行结果:
不管是while循环还是for循环,原理都是取根号,循环到取根号后的数,至于为什么需要循环到开根后的数,我想主要是因为一个数的分解因子在开根号后的数向上取整以下吧. 话不多说,上代码: while循环: while循环原理如下: i = 2 while i <= 100: # 内层循环 j 从2循环到根号 i j = 2 while j <= (i / j): # j <= (i/j) 等效于 j*j <= i 也就等于 j <= 根号 i if i % j == 0: br