Python 入门教程 2 ---- Tip Calculator

    1 把变量meal的值设置为44.50

[python] 

#Assign the variable meal the value 44.50 on line 3!  

meal = 44.50  

 

 第二节

    1 把变量tax的值设置为6.75%     

[python]  

meal = 44.50  

tax = 6.75/100  

 

 第三节

    1 设置tip的值为15%   

[python]  

#You're almost there! Assign the tip variable on line 5.  

meal = 44.50  

tax = 0.0675  

tip = 0.15  

 

 第四节

    1 把变量meal的值设置为meal+meal*tax

[python]  

#Reassign meal on line 7!  

meal = 44.50  

tax = 0.0675  

tip = 0.15  

meal = meal+meal*tax  

 

 第五节

    1 设置变量total的值为meal+meal*tax

[python]  

#Assign the variable total on line 8!  

meal = 44.50  

tax = 0.0675  

tip = 0.15  

meal = meal + meal * tax  

total = meal + meal * tip  

print("%.2f" % total)