我在输入一个字符串作为输入的响应时,有一个关于如何防止ValueError的问题。
elif choice == "2":
#Input of both name and last name
while True: #Checks for name and last name characters and their length
name, name2 = input("Please tell me your name and last name separated by space ").split()
if name.isalpha() and name2.isalpha() and (len(name) >= 1) and (len(name2) >= 1):
print("--------------------")
print("Nice to meet you! So " + (str(name) + " " + str(name2)) + ", are you ready to begin?")
break
else:
print("ERROR: Choose a name and last name with at least one character and use only letters, please!")
print("--------------------")
我希望我的程序在被要求两个时阻止只输入一个字符串。与检查 name.isaplha()和 len(name)> = 1 类似,我希望程序检查是否插入了两个字符串。如果只有一个,我希望它打印("错误:选择一个至少有一个字符的名字和姓氏,请只用字母!"),基本上 else:块就像输入中的其他错误一样。
谢谢!
答案 0 :(得分:3)
我建议使用try
和except
:
try:
name, name2 = input("Please tell me your name and last name separated by space ").split()
except ValueError:
print("Error: you must enter two string")