C language-cyclic structure

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# Import
 
  
Int main (int argc, const char * argv []) {# pragma mark --------------- while LOOP // do not show an endless loop // printf ("hello lanou \ n "); // printf ("hello lanou \ n "); // printf ("hello lanou \ n "); // printf ("hello lanou \ n "); // printf ("hello lanou \ n"); // printf ("hello la Nou \ n "); // printf (" hello lanou \ n "); // printf (" hello lanou \ n "); // printf ("hello lanou \ n"); // cyclic body, cyclic body hello lanou // int I = 10; // while (I> 0) {// printf ("hello lanou \ n"); // I --; //} // int I = 0; // while (I <10) {// printf ("hello lanou \ n"); // I ++; //} // int I = 4; // while (I> = 0) {// printf ("% d", I); // I --; //} // int I = 1; // print multiples of 7 // while (I <100) {// if (I % 7 = 0) {// printf ("% d", I ); ///} // I ++; //} // Print the number of digits with a single digit of 7 // while (I <100) {// if (I % 10 = 7) {// printf ("% d", I); //} // I ++; //} // print the number of 10 to 7 // while (I <100) {// if (I/10 = 7) {// printf ("% d", I); //} // I ++; // print out a multiple of 7, and does not contain the number of 7 // while (I <100) {// if (I % 7! = 0 & I/10! = 7 & I % 10! = 7) {// printf ("% d", I); //} else {// printf ("over"); //} // I ++; //} // printf ("\ n"); // printf ("\ n"); // int j = 100; // while (j> 0) {// if (j % 7! = 0 & j % 10! = 7 & j/10! = 7) {// printf ("% d", j); //} else {// printf ("over"); //} // j --; //} // printf ("\ n"); // printf ("\ n"); // int a = arc4random () % 71 + 10; // printf ("% d", a); // random number [n, m] arc4random () % (m-n + 1) + n // print n random numbers // printf ("enter a number:"); // int I = 0, n = 0; // scanf ("% d", & n); // while (n> 0) {// I = arc4random () % 21 + 10; // printf ("% d", I); // n --; //} // printf ("enter a number:"); // int I = 0, n = 0, max = 0; // scanf ("% d", & n); // while (n> 0) {// I = arc4random () % 41 + 30; // printf ("% d", I); // if (max
  
   
I? Max: I; // n --; //} // printf ("\ nmax = % d", max); // printf ("enter a number :"); // int n = 0, I = 0, max = 0; // scanf ("% d", & n); // while (I
   
    
0 & I <9) {// I ++; // continue; //} // printf ("% d", I); // I ++; /// I ++ forgot to execute an endless loop // at least once. It also supports break and continue // int I = 0; // do {// printf ("% d", I); // I ++; //} while (I <101 ); // for (int I = 0; I <101; I ++) {// printf ("% d", I ); ///} // for (int I = 1; I <101; I ++) {// a multiple of 7, 10 is 7, A single digit is 7 printed // if (I % 7 = 0 | I/10 = 7 | I % 10 = 7) {// printf ("over"); // other printed numbers //} else {// printf ("% d", I ); ///} //} # pragma mark --------------- nested loop // for (int I = 0; I <3; I ++) {// for (int j = 1; j <4; j ++) {// printf ("% d", j); // break; for //} // printf ("\ n"); //} // for (int I = 0; I <3; I ++) {// for (int j = 0; j <3; j ++) {// printf ("% d", arc4random () % 21 + 10 ); //} // printf ("\ n"); //} // for (int I = 0; I <1; I ++) {// printf ("% d", arc4random () % 21 + 10); //} // printf ("\ n "); // for (int j = 0; j <2; j ++) {// printf ("% d", arc4random () % 21 + 10 ); //} // printf ("\ n"); // for (int k = 0; k <3; k ++) {// printf ("% d ", arc4random () % 21 + 10); // printf ("\ n"); // for variable, specify the quantity. // for (int I = 0; I <1; I ++) {// for (int j = 0; j <2; j ++) {// for (int k = 0; k <3; k ++) {// printf ("% d", arc4random () % 21 + 10 ); /// printf ("\ n"); //} // printf ("\ n"); //} // printf ("\ n "); //} // for variable to be converted to quantitative. // First, write and analyze the similarities and differences (intermediate process and intermediate thinking) ----- write simple code // for (int I = 0; I <3; I ++) {// for (int j = 0; j <= I; j ++) {// printf ("% d", j); //} // printf ("\ n "); ///} // for (int I = 1; I <10; I ++) {// for (int j = 1; j <10; j ++) {// printf ("% d * % d = % 2d", I, j, I * j); //} // printf ("\ n "); //} //-2d %,-minus sign indicates left alignment, and 2d indicates controlling 2 digits // for (int I = 1; I <10; I ++) {// for (int j = 1; j <= I; j ++) {// printf ("% dx % d = %-2d", I, j, I * j); //} // printf ("\ n"); // print three numbers) possible three-digit combination of // for (int I = 1; I <10; I ++) {// for (int j = 0; j <10; j ++) {// for (int k = 0; k <10; k ++) {// printf ("% d", I, j, k); //} // printf ("\ n"); //} return 0 ;}