100yineisushu

  1-100之间有多少个素数，并输出所有素数及素数的个数。 ???? 程序分析：判断素数的方法：用一个数分别去除2到sqrt(这个数)，如果能被整除，则表明此数不是素数，反之是素数。(How many prime numbers are there between 1-100 and output all prime numbers and prime numbers. The method of judging prime number: 2 to sqrt (this number) is removed by one number, and if it can be divided, the number is not prime, and vice versa.)