Python基础练习题

for i in range(1,5):
    for j  in range(1,5):
        print(i,j)
    print("-"*10)
‘‘‘
1 1
1 2
1 3
1 4
----------
2 1
2 2
2 3
2 4
----------
3 1
3 2
3 3
3 4
----------
4 1
4 2
4 3
4 4
----------
‘‘‘

for m in range(1,5):
    for n in range(1,m+1):
        print(n,m)
    print("********")

‘‘‘
1 1
********
1 2
2 2
********
1 3
2 3
3 3
********
1 4
2 4
3 4
4 4
********

‘‘‘

for m in range(1,5):
    j=6
    for n in range(1,j-m):
        print(m,n)
        j=j-1
    print("*****")
‘‘‘
1 1
1 2
1 3
1 4
*****
2 1
2 2
2 3
*****
3 1
3 2
*****
4 1
*****
‘‘‘

def gen(line_cnt):
    for row in range(1,line_cnt+1):
        for col in range(row,line_cnt):
            print("%d%d\t"%(row,col))
        print("")
if __name__ == ‘__main__‘:
    gen(5)

def gen(line_cnt):
    for i in range(1,line_cnt+1):
        for j in range(i,line_cnt):
            m=i*j
            print("%s*%s=%s\t"%(i,j,m))
        print("")
if __name__ == ‘__main__‘:
    gen(10)