Python outputs prime numbers between 2 and 100

Purpose:

Calculate the number of prime numbers between 2-100 and return the result

What are prime numbers?

Prime numbers refer to natural numbers greater than 1 that have no other factors except 1 and itself.

Code implementation:

# 定义一个列表接受返回的质数
list_num = []

def primeNum(n, m):
    # 遍历n-m（含nm）间的所有数字并赋值给i
    for i in range(n, m + 1):
        # 遍历2-i中的数并赋值给x
        for x in range(2, i):
            # 判断i能否被x取整，能取整说明能被整除，跳出for循环
            if i % x == 0:
                break
        # 不能取整说明是质数添加到里列表list_num中
        # 这里用到了for else，需要注意一下
        else:
            list_num.append(i)

primeNum(2, 100)
print('您输入的区间中质数的个数为'+str(len(list_num))+'\n它们是:'+str(list_num))

The result is as shown:

python tutorial

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