关键字应该是每一个非注释行的第一个字段；通常与 char* 相关联的字符串引号是可选内容。

The keywords should be the first field of each non-comment line; the string quotes that you typically associate with a char* are optional here.

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或者，还可以将这个头中止点指定为 #pragma hdrstop，如果在源文本中，它出现在一个有效的非预处理程序语言关键字之前。

Alternatively, this header stop point can also be specified as #pragma hdrstop, if it is encountered in the sources before a valid non-preprocessor language keyword in the source text.

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signed/unsigned 关键字是声明非浮点类型必需的。

The signed/unsigned keyword is required for non-floating point declarations.

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