按照NN的宏定义,会出现连续两个逗号的情况,这在数组初始化里是不允许的。
是的,您for那一行是错误的,正确的写法应该是 您错就错在将分号改成了逗号,并且您还多加了两个分号。分别加在了末尾循环体和右括号后面。下面具体为您介绍一下for语句的用法 1.语句最简形式为:for( ; ; )2.一般形式为:for(单次表达式;条件表达式;末尾循环体){ 中间循环体;} 其中,表示...
0 ERROR: expected expression before "{" 4 error in c code: expected identifier or '(' before '{' token 1 expected expression before ‘{’ token c program 1 expected ';' before '{' token C code 12 expected expression before '{' token 8 "Expected expression before ' { ' token...
xx.c: In function ‘thread_func’: xx.c:28:29: error: expected ‘)’ before ‘;’ token pthread_mutex_lock(&mtx); ^ xx.c:36:5: error: expected expression before ‘}’ token } ^ xx.c: In function ‘main’: xx.c:53:1: error: unknown type name ‘be’ be add lock...
if(c==+){printf("%f",a+b);改为 if(c=='+') printf("%f",a+b);即:+用单引号,将大括号{删掉。
c语言不支持数组长度为变量,也就是说,你只能将sco的长度预先设定,如10,100等,不能通过输入变量n确定。
return 0;不用等于
printf("Total:%f\n", (float)deposit * pow((1 + 2.70%), 3)); break; case '5': printf("Total:%f\n", (float)deposit * pow((1 + 2.88%), 5)); break; case '8': printf("Total:%f\n", (float)deposit * pow((1 + 3.00%), 8)); break; default:printf("error\n"); } ret...
include <stdio.h> int main(){ int a;unsigned int b;short c;scanf("%d%u%hd",&a,&b,&c);printf("a=%d\nb=%u\nc=%hd\n",a,b,c);return 0;}
expected primary-expression before '.' token是指缺少申明,需要申明变量。解决方法:LOG(INFO)的头函数为:logging,新建文件my_dbclient.h my_dbclient.cpp 作为自定义的接口,具体实现如下:my_dbclient.h [cpp] view plain copy #include <iostream> include <vector> include //注意:这里并...