death_age = 80
name = input("your name:")
age = input("your age:") #input
#接收的所有數據都是字符串，即便你輸入的是數字，但依然會被當成字符串來處理
print( type(age))
#int integer =整數 把字符串轉成int,用int(被轉成的數據)
#srt string = 字符串 把數據轉成字符串用str(被轉成的數據)
print("Your name:",name)
# str 強制轉成字符串
#print("Your can still live fur ",str(death_age - int(age)),"years ...... ") =三個獨立的字符串
#print("Your can still live fur " + str(death_age - int(age)) +"years ...... ") =拼接成一個字符串
print("Your can still live fur ",death_age - int(age),"years ...... ")