‘‘‘打印三角行；------------lines = int(input(‘请输入行数:‘))for i in range(lines): for j in range(i): print("*",end= ‘ ‘) print()‘‘‘‘‘‘打印倒立三角行；lines = int(input(‘请输入行数:‘))for i in range(lines): j = 0 while j < lines-i: print("*",end= ‘ ‘) j += 1 print()‘‘‘# 打印九九乘法表---------------------‘‘‘i = 1while i <= 9: j = 1 while j <= i: print(‘%d * %d = %d‘ %(j,i,j*i),end= ‘ ‘) j += 1 i += 1 print()‘‘‘# # 求1000以内的水仙花数--------------------‘‘‘for i in range(100,1000): m = i // 100 n = i // 10 % 10 p = i % 10 if (m ** 3) + (n ** 3) +(p ** 3) == i: print(i,end=‘,‘)‘‘‘# 求1-100以内所有偶数的和------------------‘‘‘sum = 0i = 1while i <= 100: if i % 2 == 0: sum += i i += 1print(sum)# 获取用户输入的任意数，判断其是否是质数?-----------------num1 = int(input(‘请输入一个整数‘))i = 2while i < num1: if num1 % i == 0: print(num1,"不是质数") print(i,"*",num1//i,"是",num1) break i += 1else: print(num1,"是质数")‘‘‘# n = int(input("请输入一个数字：")) # ------------‘‘‘j = 2while j < n: if n % j == 0: print(n,‘不是质数‘) print(j,"*",n//j,‘是‘,n) break j += 1else: print(n,"是质数")‘‘‘# 打印出100 以内的质数 ------------------‘‘‘num = []j = 2for i in range(2,100): for j in range(2,i): if i % j == 0: break else: num.append(i)print(num)‘‘‘ 