// C语言库isalnum()函数#include stdio.h#include ctype.hint main () {int var1 = d;
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@H_301_1@// C语言库isalnum()函数 #include <stdio.h> #include <ctype.h> int main () { int var1 = 'd'; int var2 = '2'; int var3 = ' '; int var4 = ' '; if( isalnum(var1) ) { printf("var1 = |%c| is Alphanumeric\n", var1 ); } else { printf("var1 = |%c| is not Alphanumeric\n", var1 ); } if( isalnum(var2) ) { printf("var2 = |%c| is Alphanumeric\n", var2 ); } else { printf("var2 = |%c| is not Alphanumeric\n", var2 ); } if( isalnum(var3) ) { printf("var3 = |%c| is Alphanumeric\n", var3 ); } else { printf("var3 = |%c| is not Alphanumeric\n", var3 ); } if( isalnum(var4) ) { printf("var4 = |%c| is Alphanumeric\n", var4 ); } else { printf("var4 = |%c| is not Alphanumeric\n", var4 ); } return(0); }
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