average.py源代码分析

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# Fig. 3.10: fig03_10.py

# Class average program with counter-controlled repetition.

# initialization phase

total = 0 # sum of grades

gradeCounter = 1 # number of grades entered

# processing phase

while gradeCounter <= 10: # loop 10 times

grade = raw_input( "Enter grade: " ) # get one grade

#键入分数

grade = int( grade ) # convert string to an integer

#转换成int型

total = total + grade

%每键入一个分数，就将其加如total变量

gradeCounter = gradeCounter + 1

%计数器加1

# termination phase

average = total / 10 # integer division

#获取平均分

print "Class average is", average

#打印平均分

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