students = ["班長","藝術委員","紀律委員","學習委員","體育委員"]
Count = 0
while len(students):
    print(students[Count])
    Count += 1

print("循環(huán)結(jié)束")

students = ["班長", "藝術委員", "紀律委員", "學習委員", "體育委員"]
Count = 0
while len(students):  # 條件始終為 True（因為 students 沒被修改）
    print(students[Count])  # 當 Count=5 時，students[5] 越界！
    Count += 1

students = ["班長", "藝術委員", "紀律委員", "學習委員", "體育委員"]
Count = 0
while Count < len(students):  # 確保 Count 不越界
    print(students[Count])
    Count += 1
print("循環(huán)結(jié)束")

students = ["班長", "藝術委員", "紀律委員", "學習委員", "體育委員"]
for student in students:  # 自動遍歷，無需索引
    print(student)
print("循環(huán)結(jié)束")

students = ["班長", "藝術委員", "紀律委員", "學習委員", "體育委員"]
while students:  # 當列表非空時循環(huán)
    print(students[0])  # 打印第一個元素
    students.pop(0)     # 移除第一個元素
print("循環(huán)結(jié)束")

students = ["班長","藝術委員","紀律委員","學習委員","體育委員"]
Count = 0
while Count < len(students):
    print(students[Count])
    Count += 1
    if Count == 2:
        continue
print("循環(huán)結(jié)束")
# 我想要if Count == 2:的時候跳過改元素繼續(xù)print接下來的元素

students = ["班長", "藝術委員", "紀律委員", "學習委員", "體育委員"]
Count = 0
while Count < len(students):
    if Count != 2:  # 只有當 Count 不是 2 時才打印
        print(students[Count])
    Count += 1
print("循環(huán)結(jié)束")

students = ["班長", "藝術委員", "紀律委員", "學習委員", "體育委員"]
Count = 0
while Count < len(students):
    # 如果Count == 2 的時候繼續(xù)讓Count+=1并且continue跳出當前循環(huán)進入下一次循環(huán),
    # 之后的進行下一次循環(huán)的時候Count就是等于3了，因此就跳過執(zhí)行Count=2的print了
    if Count == 2:
        Count += 1  # 必須手動增加 Count，否則會死循環(huán)
        continue    # 跳過后續(xù)代碼
    print(students[Count])
    Count += 1
print("循環(huán)結(jié)束")

data = [
    {"name": "Alice", "scores": [80, 90, None]},
    {"name": "Bob", "scores": [75, None, 85]},
    {"name": "Charlie", "scores": [None, 95, 80]}
]

i = 0
while i < len(data):
    j = 0
    while j < len(data[i]["scores"]):
        if data[i]["scores"][j] is None:
            j += 1
            continue  # 跳過無效成績
        print(f"{data[i]['name']}的第{j+1}科成績: {data[i]['scores'][j]}")
        j += 1
    i += 1

for student in data:
    for idx, score in enumerate(student["scores"]):
        if score is not None:
            print(f"{student['name']}的第{idx+1}科成績: {score}")

import random

def data_stream():
    """模擬數(shù)據(jù)流"""
    while True:
        yield random.randint(0, 100)

count = 0
valid_count = 0
stream = data_stream()

while valid_count < 10:  # 收集10個有效數(shù)據(jù)
    num = next(stream)
    if num < 20:
        continue  # 跳過小于20的數(shù)據(jù)
    print(f"有效數(shù)據(jù){valid_count+1}: {num}")
    valid_count += 1
    count += 1

print(f"共處理{count}條數(shù)據(jù)，其中{valid_count}條有效")

try:
    while condition:
        # 業(yè)務邏輯
except (IndexError, ValueError) as e:
    print(f"處理異常: {type(e).__name__}")
finally:
    # 資源清理

while condition:
    print(f"調(diào)試信息: {locals()}")  # 打印所有局部變量
    # 業(yè)務邏輯

import pdb; pdb.set_trace()  # 交互式調(diào)試

import logging
logging.basicConfig(level=logging.DEBUG)

while condition:
    logging.debug(f"當前狀態(tài): {state}")
    # 業(yè)務邏輯