1、运算符a
print(5 < 4 or 3) #3
2、运算符b
print(2 > 1 or 6) #ture
3、运算符c
print(3 > 1 and 0) #0
4、计算 1 - 2 + 3 -4... + 99 中除了88以外所有数的值
num = 0 num1 = 0 num2 = 0 num3 = 0 while num < 100: num += 1 if num == 88: pass else: if num % 2 != 0: num1 += num if num % 2 == 0: num2 += num num3 = num1 - num2 print(num3)
#38
5、计算 1 + 2 + 3 ... + 99 中除了88以外所有数的总和
num = 0 num1 = 0 while num < 100: num += 1 if num == 88: pass else: num1 += num print(num1)
6、#⽤户登陆(三次输错机会)且每次输错误时显示剩余错误次数(提示:使⽤字符串格式化)