//整型
    int integerType = 5;
    //浮点型
    float floatType = 3.1415;
    //双浮点型
    double doubleType = 2.2033;
    //短整型
    short int shortType = 200;
    //长整型
    long long int longlongType = 7758123456767L;
    //c语言字符串
    char * cstring = "this is a string!";
   
   
    //整型
    NSLog(@"The value of integerType = %d",integerType);
    //浮点型
    NSLog(@"The value of floatType = %.2f",floatType);
    //双浮点型
    NSLog(@"The value of doubleType = %e",doubleType);
    //短整型
    NSLog(@"The value of shortType = %hi",shortType);
    //长整型
    NSLog(@"The value of longlongType = %lli",longlongType);
    //c语言字符串
    NSLog(@"The value of cstring = %s",cstring);

//整型
    int integerType = 5;
    //浮点型
    float floatType = 3.1415;
    //双浮点型
    double doubleType = 2.2033;
    //短整型
    short int shortType = 200;
    //长整型
    long long int longlongType = 7758123456767L;
    //c语言字符串
    char * cstring = "this is a string!";
   
   
    //整型
    NSLog(@"The value of integerType = %d",integerType);
    //浮点型
    NSLog(@"The value of floatType = %.2f",floatType);
    //双浮点型
    NSLog(@"The value of doubleType = %e",doubleType);
    //短整型
    NSLog(@"The value of shortType = %hi",shortType);
    //长整型
    NSLog(@"The value of longlongType = %lli",longlongType);
    //c语言字符串
    NSLog(@"The value of cstring = %s",cstring);