使用AT-START-F437开发板,用printf 打印float类型的变量在串口输出里面是空的,其他整形和字符是正常的...
32天带你学完C语言——第6天(7)数据类型 浮点型 浮点型你真的懂吗?来小测一下 float f1 = 2.2; if (f1 == 2.2) { printf("f1 == 2.2\n"); } else { printf("f1 != - 嵌入式小美老师于20240408发布在抖音,已经收获了29.7万个喜欢,来抖音,记录美好生活!
sp; max_pay=pay; printf("number: %s\t name: %s\t sex: %s\t pay: %f\t\n",number,name,sex,pay); }
typedef signed short s16; typedef unsigned short u16; typedef signed int s32; typedef unsigned int u32; typedef signed long long s64; typedef unsigned long long u64; 与体系结构相关的,定义在include/linux/type.h文件中: /* bsd */ typedef unsigned char u_char; typedef unsigned short u_short...
用i=sizeof(int) 、i=sizeof(&i) 等获取类型的占用空间。 在菜单或按钮上选择X86(win32)、X64可以切换环境 int i = sizeof(int); i = sizeof(short int); i = sizeof(long); i = sizeof(long long); //同long i = sizeof(float); i = sizeof(double); i = sizeof(bool); //不是...
C MySQL float类型数据 用 printf()打印 if (mysql_query(&mysql,query) != 0) { /*执行SQL语句*/ printf("SELECT ERROR!!!\n"); mysql_close(&mysql); exit(0); } result = mysql_store_result(&mysql); while ( ( row = mysql_fetch_row(result) ) ) {...