python 之九九乘法表

for i in range(1,10):
    for j in range(1,i+1):
        print(f"{j}*{i}={i*j}",end='\t')
    print()

运行结果如下：

L = []
for i in range(2,10):
    flag = True
    for j in range(2,i): #这就不包括1和本身了
        if i % j == 0:
            flag = False
            break
    if flag == True:
        L.append(i)
print(sum(L))