代码流程图
2020-12-04 16:55:00 13 举报代码流程图
作者其他创作
大纲/内容
yes
227
Continue the loop until the user types 'quit'
230
220 or 530
200
Give the value of the replycode response for the last module to judge
250
Enter another module and continue to wait
judge replycode
no
begin
500
if it is active mode
server returns response
550
257
150
331
Change the mode to passive mode
226
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