Python 入门教程 2 ---- Tip Calculator
第一节
1
把变量meal的值设置为44.50
#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%
meal = 44.50
tax = 6.75/100
第三节
1 设置tip的值为15%
#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
#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
#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)
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