#1

first_name = "Wei"
last_name = "William"
full_name = first_name +" " + last_name  ####" "在终端输出full_name中间的空格

print(full_name)

#2

#(first_name = "Wei"
last_name = "William"
full_name = "Hello," + first_name +" " + last_name.upper() + "!"   #### 切勿忘记upper后的()

massage = full_name
print(massage)



