print " What is your name?"
myName= raw_input()
print ('the length of your name is '+str(len(myName)) )
输入line3时曾犯的错误:
print ('the length of your name is ',len(myName))
输出结果为:
What is your name?
han meimei
('the length of your name is ', 10)
line3显示为一元组
File "len().py", line 3, in <module>
print ('the length of your name is '+ len(myName))
TypeError: cannot concatenate 'str' and 'int' objects
将逗号改为加号后,字符串与数值属于不同类型数据,无法相加
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