AttributeError: 'int' object has no attribute 'isdigit' from user input

Question

我是运行 python 默认 IDE 3。

这是我的代码：

def print_():
    f = open("height.txt","r")
    content = f.read()
    print(content)
    f.close()
    main()


def main():     
    name = str(input("What is your name?"))
    data = int(input("How tall are you? (CM)"))

    if data.isdigit() == True:
        print("\n")

    elif data.isdigit() == False:
        print("Must be a number!")
        main()


    # a+ is read only mode
    f = open("height.txt","a+")
    f.write(name)
    f.write(str(data))
    f.write("cm, ")
    f.close()

    data_1 = str(input("1 = View Contents. Other = Quit"))
    if data_1 == '1':
        print_()

    else:
        print("Exiting")

main()

Answer 1

问题是 isdigit 对字符串进行操作；但是，您已经将数据对象转换为 int：data = int(input("How tall are you? (CM)"))。如果要使用 isdigit 函数，则应让数据为字符串。数据 = 海峡（输入（“...”））

Answer 2

您正在尝试检查 isdigit() 您已经转换为 int 的数据。将其作为 str 读入，然后在检查它是一个数字后将其投射：

def main():     
    name = str(input("What is your name?"))
    data = str(input("How tall are you? (CM)"))

    while !data.isdigit():
        print("Must be a number!")
        data = str(input("How tall are you? (CM)"))
        print("\n")

    data = int(data)
    print("\n")

此循环将继续请求一个 int 直到提供一个，然后将其转换为 int

AttributeError: 'int' object has no attribute 'isdigit' from user input

AttributeError: 'int' object has no attribute 'isdigit' from user input

python

ide