print('您拥有三次机会输入正确的账号和密码') print('三次输入错误,账号将被锁定') i=3 while i>0: user_name = input('请输入您的账号:') psw = input('请输入密码:') if user_name == 'zy' and psw == '666666': print('登陆成功') i=-4 else: i-=1 if i>0: print('账号或密码错误,还可输入', i, '次') print('请重新输入') else: print('三次输入错误,账号已锁定')
print('-------------打印输出3×4的方阵----------------') for i in range(1,4): for j in range(1,5): print('*',end='') print() print('-------------打印输出直角三角形----------------') for i in range(1,6): for j in range(1,i+1): print('*',end='') print() print('-------------打印输出倒直角三角形----------------') for i in range(1,6): for j in range(1,6-i+1): print('*',end='') print() print('-------------打印输出等腰三角形----------------') for i in range(1,6): for j in range(1,6-i+1): print(' ',end='') for k in range(1,2*i): print('*',end='') print()
print('-------------打印输出菱形----------------') row = eval(input('请输入菱形行数:')) if row % 2 == 0: print('输入必须为奇数,请重新输入') row = eval(input('请输入菱形行数:')) else: for i in range(1, int((row+1)/2+1)): for j in range(1, int((row+1)/2-i+1)): print(' ', end='') for k in range(1, 2*i): print('*', end='') print() for i in range(1, int((row+1)/2+1)): for j in range(1, i+1): print(' ', end='') for k in range(1, int(row-2*i+1)): print('*', end='') print()
print('-------------打印输出空心菱形----------------') row = eval(input('请输入菱形行数:')) if row % 2 == 0: print('输入必须为奇数,请重新输入') row = eval(input('请输入菱形行数:')) else: for i in range(1, int((row+1)/2+1)): for j in range(1, int((row+1)/2-i+1)): print(' ', end='') for k in range(1, 2*i): if k==1 or k==2*i-1: print('*', end='') else: print(' ',end='') print() for i in range(1, int((row+1)/2+1)): for j in range(1, i+1): print(' ', end='') for k in range(1, int(row-2*i+1)): if k==1 or k==row-2*i: print('*', end='') else: print(' ',end='') print()
标签:end,int,range,python3,print,输入,row From: https://www.cnblogs.com/zwowoy/p/17546418.html