Python练习题实现汇总

练习1 2019-3-19
# 写一个函数实现99乘法表

def x99(x):
    if x >=1 and x <=9:
        line = 1
        while line <= x:
            start=1
            while start <= line:
                print('{0}*{1}={2}'.format(start,line,start*line),end='  ')
                start+=1
            print()
            line+=1
    else:
        print('参数在1-9的正整数范围内！')
# 调用函数
x99(9)

练习2 2019-3-19

# 1到4能组成多少个互不相同且不重复数字的三位数？分别是？


for x in range(1,5):
    for y in range(1,5):
        for z in range(1,5):
            if x != y and y != z and x != z:
                print(x,y,z)