python基礎作業練習-20171214

標籤：==   重試   sum   pytho   pre   登陸   成功   偶數   count   

1、使用while迴圈輸入 1 2 3 4 5 6     8 9 10

count = 1 while count <= 10:    if count == 7:        count = count + 1        continue    print(count)    count = count + 1

2、求1-100的所有數的和

count = 1 sum = 0while count <= 100:sum = sum + countcount = count + 1 print(sum)

3、輸出 1-100 內的所有奇數

count = 1 while count <= 100:if count % 2 ==1:print(count)count = count + 1count = count + 1

4、輸出 1-100 內的所有偶數

count = 1while count <= 100:if count % 2 ==0:print(count)count = count + 1count = count + 1

5、求1-2+3-4+5 ... 99的所有數的和

count = 1 sum = 0 while count <= 99:if count ==1:sum = countcount = count + 1continueelse:if count % 2 ==1:sum = sum + countcount = count + 1else:sum = sum - countcount = count + 1print(sum)

6、使用者登陸（三次機會重試）

count = 1sum = 0while count <= 3:username = input(‘請輸入使用者名稱：‘)password = input(‘請輸入使用者密碼：‘)if username == ‘Jason‘ and password == ‘123‘:print(‘登入成功，歡迎“Jason”回來！‘)breakelse:sum = 3 - countprint(‘使用者名稱或密碼錯誤，請重新輸入，目前還剩餘‘+str(sum)+‘機會！‘)count = count + 1

　

python基礎作業練習-20171214