如何將字符串數字轉換為int並避免轉換前的字符串文本

Question

我想創建檢查條件字符串是否為字符串編號，我該怎么做 python

x = "String"
y = "12"

if x is string:
   print("this is string")
if y is string:
   print("this is not string")

Answer 1

你可以嘗試這樣的事情：

array = ["String", "12"]

for item in array:
  try:
    int(item)
    print(f"{item} is not string")
  except:
    print(f"{item} is string")

Answer 2

您可以使用.isdigit()方法來實現這一點。

x = "String"
y = "12"

if not(x.isdigit()):
   print("this is string")
if y.isdigit():
   print("this is not string")

Output：

this is string
this is not string