书本练习题3print函数使用

加减乘除运算练习

• + plus 加号 • - minus 减号 • / slash 斜杠 • * asterisk 星号 • % percent 百分号 • < less-than 小于号 • > greater-than 大于号 • <= less-than-equal 小于等于号 • >= greater-than-equal 大于等于号

print ("I will now count my chickens:")

print (‘hens‘,25+30/6)
print (‘Roosters‘,100-25*3%4)

print ("Now I will count the eggs:")

print (3+2+1-5+4 % 2 - 1 / 4+6)

print ("Is it true that (3+2)<(5-7)")

print (‘What is (3+2)?‘,3+2)
print("What is (5-7)",5-7)

print ("Oh,that‘s why it‘s Faslse.")

print("How about some more.")

print ("Is it greater?",5>-2)
print ("Is it qreater or equal",5>= -2)
print("Is it less or equal",5<= -2)
help("floating")

输出结果：

I will now count my chickens:hens 30.0Roosters 97Now I will count the eggs:6.75Is it true that (3+2)<(5-7)What is (3+2)? 5What is (5-7) -2Oh,that‘s why it‘s Faslse.How about some more.Is it greater? TrueIs it qreater or equal TrueIs it less or equal False