#include测试代码int main() { int a = 43; int j; } ## 总结:printf的返回值是“变量a的位数”+ “%d周围的字符数”
#includeint main() { int a = 43; printf("%dn", printf("a=%dn", a)); }

#include测试代码int main() { int a = 43; int j; } ## 总结:printf的返回值是“变量a的位数”+ “%d周围的字符数”
#includeint main() { int a = 43; printf("%dn", printf("a=%dn", a)); }