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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                # 18.3 映射 創建: `map1 := make(map[keytype]valuetype)` 初始化: `map1 := map[string]int{"one": 1, "two": 2}` (1)如何使用`for`或者`for-range`遍歷一個映射: ``` for key, value := range map1 { … } ``` (2)如何在一個映射中檢測鍵`key1`是否存在: `val1, isPresent = map1[key1]` 返回值:鍵`key1`對應的值或者`0`, `true`或者`false` (3)如何在映射中刪除一個鍵: `delete(map1, key1)`
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