Missing semicolon 缺少分号 Missing space before opening brace 左大括号前缺少空格 Trailing spaces not allowed 不允许尾随空格 Unexpected trailing comma 意外的尾随逗号 Multiple spaces found before '+' 在“+”之前找到多个空格 A space is required after ',' “，”后需要空格 Expected indentation of 4 spaces but found 6 预期缩进4个空格，但找到6个 Infix operators must be spaced 中缀运算符必须间隔 'title' is never reassigned. Use 'const' instead “标题”从未重新分配。改用“const”