C编程嵌套if-else语句它始终是合法的,这意味着可以使用一个if 或 else if 在另一个if 或 else if 语句中 。
嵌套if语句的语法如下:
if( boolean_expression 1) { /* Executes when the boolean expression 1 is true */ if(boolean_expression 2) { /* Executes when the boolean expression 2 is true */ } }
可以嵌套 if...else 在类似的方式 if 语句方式。
#include <stdio.h> int main () { /* local variable definition */ int a = 100; int b = 200; /* check the boolean condition */ if( a == 100 ) { /* if condition is true then check the following */ if( b == 200 ) { /* if condition is true then print the following */ printf("Value of a is 100 and b is 200" ); } } printf("Exact value of a is : %d", a ); printf("Exact value of b is : %d", b ); return 0; }
让我们编译和运行上面的程序,这将产生以下结果:
Value of a is 100 and b is 200 Exact value of a is : 100 Exact value of b is : 200