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51问答网 > C语言中，定义long double型变量a,输出a的值时用什么格式符才对，%f为啥出错？

C语言中，定义long double型变量a,输出a的值时用什么格式符才对，%f为啥出错？

2025-03-15 02:03:21

推荐回答（5个）

回答1：

%f 是输出 float 型变量

%lf 是输出 double 型变量

%Lf 是输出 long double 型变量

这些内容书上都有的。。

关于 printf

关于 scanf

改正一下，书上写的是大写的L。

回答2：

%lf，因为他是双精度

回答3：

使用%lf，%f用于float和double

回答4：

%lf ,大写LF

回答5：

f是浮点型的，是不是用%l？反正java里一般Long用l

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