#%s字符串占位符:可以接收字符串,也可接收数字 print('My name is %s,my age is %s' %('egon',18)) #%d数字占位符:只能接收数字 print('My name is %s,my age is %d' %('egon',18)) print('My name is %s,my age is %d' %('egon','18')) #报错 #接收用户输入,打印成指定格式 name=input('your name: ') age=input('your age: ') #用户输入18,会存成字符串18,无法传给%d print('My name is %s,my age is %s' %(name,age)) #注意: #print('My name is %s,my age is %d' %(name,age)) #age为字符串类型,无法传给%d,所以会报错