在数学中，数字有正负之分。在C语言中也是一样，short、int、long 都可以带上正负号，例如：
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1.3.5 C语言中的正负数及其输出
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- 2026-09-21
- C语言
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1.3.4 二进制数、八进制数和十六进制数
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- 2026-09-21
- C语言
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1.3.2 在屏幕上输出各种类型的数据
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1.3.3 C语言中的整数（short,int,long）
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1.3.1 大话C语言变量和数据类型
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