python基础第2天-算术运算符

• 算术运算符

 1 a=5;
 2 b=2;
 3 print(a+b);#result:7 desc:加
 4 print(a-b);#result:3 desc:减
 5 print(a*b);#result:10 desc:乘
 6 print(b**10);#result:1024 desc:幂
 7 print(a/b);#result:2.5 desc:除
 8 print(a//b);#result:2 desc:取整除
 9 print(a%b);#result:1 desc:取余
10 
11 print(not True);#false desc:对应java中 !
12 print(True and False);#false desc:对应java中 &&
13 print(True or False);#true desc:对应java中 ||

•  取3个数中的最大值

 1 num_1 = int(input());
 2 num_2 = int(input());
 3 num_3 = int(input());
 4 max_num = 0;
 5 if num_1 > num_2:
 6     max_num = num_1;
 7 else:
 8     max_num = num_2;
 9 if max_num < num_3:
10     max_num = num_3
11 print(max_num);