Python语法总结
#hello world print("Hello world!") #基本数据类型 x = int("32") print(x) print(type(x)) print(type("Hello world!")) arr = "doris", "angel" print(len(arr)) arr = "teapot", print(len(arr)) arr = ["angel", "foo", "teapot", 45, 33] print(type(arr), arr[1], type(arr[1]), type(arr[3])) print(len("automatically")) arr.append("doris") print(arr) a = None print(a is None) # while True: # i = input("Input a number:") # try: # i = int(i) # if i == 0: # break #