为什么最后不打印hello而是字母都打乱了

Question

我正在尝试创建一个效果，使字符串“hello”逐渐出现：

import time

text = "hello"
alphebet = [
    "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",
    "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"
]
rtext = []
charNum = -1
alpheNum = -1
matching = 0
for char in text:
  charNum += 1
  while matching == 0:
    alpheNum += 1
    rtext.append(alphebet[alpheNum])
    print(*rtext)
    if alphebet[alpheNum] == char:
      matching = 1
    else:
      rtext.remove(rtext[charNum])
    time.sleep(0.2)
  alpheNum = -1
  matching = 0

我试图做到这一点，以便在 for 循环的每次迭代中，对于您尝试显示的文本的每个字母，它们都会遍历每个字母并打印它，直到找到该字母并移至下一个字母。

Answer 1

您的循环具有比您需要的更多的状态管理。

import time
import sys

text = "hello"
alphabet = [
    "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",
    "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"
]
rtext = []
for char in text:
    for achar in alphabet:
        print(f"\b{achar}",end="")
        sys.stdout.flush()
        time.sleep(0.2)
        if char == achar:
            print (" ", end="")
            break
print("\b")