C语言第3章之语句与输入输出函数.ppt

#include stdio.h main() { int a, b; printf(Please input a and b:); scanf(%d%d, a, b); printf(a=%d, b=%d, a+b=%d\n,a,b,a+b); } #include stdio.h main() { int a, b; printf(Please input a and b:); scanf(%2d%2d, a, b); printf(a=%d, b=%d, a+b=%d\n,a,b,a+b); } #include stdio.h main() { int a, b; printf(Please input a and b:); scanf(%d,%d, a, b); printf(a=%d, b=%d, a+b=%d\n,a,b,a+b); } 输入数据的格式控制 #include stdio.h main() { int a, b; scanf(%d %d, a, b); printf(a = %d, b = %d\n, a, b); } 输入数据的格式控制 #include stdio.h main() { int a, b; scanf(%d %d, a, b); printf(a = %d, b = %d\n, a, b); } 输入数据的格式控制 #include stdio.h main() { int a, b; scanf(%d %d, a, b); printf(a = %d, b = %d\n, a, b); } 输入数据的格式控制 #include stdio.h main() { int a, b; scanf(%d %d, a, b); printf(a = %d, b = %d\n, a, b); } 输入数据的格式控制 #include stdio.h main() { int a, b; scanf(%d %d, a, b); printf(a = %d, b = %d\n, a, b); } C格式符存在的问题及其解决 C格式符存在的问题及其解决 C格式符存在的问题及其解决 C格式符存在的问题及其解决 C格式符存在的问题及其解决 C格式符存在的问题及其解决 C格式符存在的问题及其解决 C格式符存在的问题及其解决 #include stdio.h main() { int a; char b; float c; printf(Please input an integer:); scanf(%d, a); printf(integer: %d\n, a); printf(Please input a character:); scanf(%c, b); printf(character: %c\n, b); printf(Please input a float number:); scanf(%f, c); printf(float: %f\n, c); } Please input an integer: 结果好像很奇怪嘛！ 12↙ Please input an character : a↙ Please input a float number: 3.5↙ integer:12 float number:3.500000 #include stdio.h main() { int a; char b; float c; printf(Please input an integer:); scanf(%d, a); printf(integer: %d\n, a); printf(Please input a character:); scanf(%c, b); printf(character: %c\n, b); printf(Please input a float number:); scanf(%f, c); printf(float: %f\n, c); } #include stdio.h main() { int a; char b;