C语言完美演绎4-4

/* 范例4-4 */#include stdio.hvoid main(){int a5;char *str abcd;/* -,,blank 数值type */printf(Flags -,,blank ........数值类型\n);printf(#%4d#(%%4d)\n,10); /* #1.1 */printf(#%4d#(%%4d)(0)\n,-10); /* #1.2 */printf(#%-4d#(%%-4d)\n,10); /* #1.3 */printf(#%-4d#(%%-4d)(0)\n,-10); /* #1.4 */printf(#% 4d#(%% 4d)\n,10); /* #2 */printf(#%7.3g#(%%7.3g)\n\n,10.2); /* #3 *//* - char type */printf(Flags -,,blank ........字符(字符串)类型\n);printf(#%5s#(%%5s)\n,str); /* #4.1 靠右(默认) */printf(#%-5s#(%%-5s)\n,str); /* #4.2 靠左 */printf(#%3c#(%%3c)\n,A); /* #5.1 靠右(默认) */printf(#%-3c#(%%-3c)\n\n,A); /* #5.2 靠左 *//* # only number */printf(Flags # .......数值类型\n);printf(#%10o#%8x#(%%10o,%%8x)\n,a,a); /* #6.1 */printf(#%010o#%08x#(%%010o,%%08x)\n,a,a); /* #6.2 */printf(#%#10o#%#8x#(%%#10o,%%#8x)\n\n,a,a); /* #6.3 */printf(测试以#标识浮点数....当输入10.0时......\n);printf(#%7.3g#(%%7.3g)\n,10.0); /* #7.1 */printf(#%#7.0f#(%%#7.0f)\n,10.0); /* #7.2 */printf(#%#7.2e#(%%#7.2e)\n,10.0); /* #7.3 */printf(#%#7.3g#(%%#7.3g)\n,10.0); /* #7.4 */getchar();/* 混用Flags(-,,blank,#) */printf(Flags -,,blank,#混用 ...(输入10.2)......\n);printf(#%#7.4g#(%%#7.4g)\n,10.2); /* #8.1 */printf(#% 7.4g#(%% 7.4g)\n,10.2); /* #8.2 */printf(#%# -7.4g#(%%# -7.4g)\n,10.2); /* #8.3 */printf(#%-# 7.4g#(%%-# 7.4g)\n,10.2); /* #8.4 */getchar();}程序执行结果Flags -,,blank ........数值类型# 10#(%4d)# -10#(%4d)(0)#10 #(%-4d)#-10 #(%-4d)(0)# 10#(% 4d)# 10.2#(%7.3g)Flags -,,blank ........字符(字符串)类型# abcd#(%5s)#abcd #(%-5s)# A#(%3c)#A #(%-3c)Flags # .......数值类型# 31177000# 64fe00#(%10o,%8x)#0031177000#0064fe00#(%010o,%08x)# 031177000#0x64fe00#(%#10o,%#8x)测试以#标识浮点数....当输入10.0时......# 10#(%7.3g)# 10.#(%#7.0f)#1.00e01#(%#7.2e)# 10.0#(%#7.3g)Flags -,,blank,#混用 ...(输入10.2)......# 10.20#(%#7.4g)# 10.2#(% 7.4g)#10.20 #(%# -7.4g)#10.20 #(%-# 7.4g)