# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/pje5xxa
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Golang 抽象語法樹 -AST- Step By Step
一、AST 基礎概念與入門必備---------------1.1 什麼是 AST（Abstract Syntax Tree）？根據維基百科的介紹：在計算機科學中，抽象語法樹 (AST)，或者僅僅是語法樹，是用編程語言編寫的源代碼的抽象語法結構的樹狀表示。樹的每個節點都表示源代碼中出現的一個構造。大多數編譯器和解釋器都使用 AST 作爲源代碼的內部表示，AST 通常會省略語法樹中的分號、換行字符、 ⌘ Read more