C语言 实验三.doc

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1、 张锦华18.3 最简单的C程序设计 -实验报告(1)源程序#includevoid main()int a,b;float d,e;char c1,c2;double f,g;long m,n;unsigned int p,q;a=61;b=62;c1=a;c2=b;d=3.56;e=-6.87;f=3157.;g=0.;m=50000;n=-60000;p=32768;q=40000;printf(a=%d,b=%dnc1=%c,c2=%cnd=%6.2f,e=%6.2fn,a,b,c1,c2,d,e);printf(f=%15.6f,g=%15.12fnm=%ld,n=%ldnp=%u,

2、q=%un,f,g,m,n,p,q);编译结果:-Configuration: 18.31 - Win32 Debug-Compiling.18.31.cC:Documents and SettingsAdministrator物理学院张锦华C语言18.31.c(11) : warning C4305: = : truncation from const double to float C:Documents and SettingsAdministrator物理学院张锦华C语言18.31.c(11) : warning C4305: = : truncation from const dou

3、ble to float 18.31.obj - 0 error(s), 0 warning(s)运行结果:修改后源程序#includevoid main()int a,b;float d,e;char c1,c2;double f,g;long m,n;unsigned int p,q;a=61;b=62;c1=a;c2=b;d=3.56;e=-6.87;f=3157.;g=0.;d=f;e=g;p=a=m=50000;q=b=n=-60000;printf(a=%d,b=%dnc1=%c,c2=%cnd=%6.2f,e=%6.2fn,a,b,c1,c2,d,e);printf(f=%15.

4、6f,g=%15.12fnm=%ld,n=%ldnp=%u,q=%un,f,g,m,n,p,q);编译结果:-Configuration: 18.31 - Win32 Debug-Compiling.18.31.cC:Documents and SettingsAdministrator物理学院张锦华C语言18.31.c(11) : warning C4305: = : truncation from const double to float C:Documents and SettingsAdministrator物理学院张锦华C语言18.31.c(11) : warning C4305:

5、 = : truncation from const double to float C:Documents and SettingsAdministrator物理学院张锦华C语言18.31.c(13) : warning C4244: = : conversion from double to float , possible loss of dataC:Documents and SettingsAdministrator物理学院张锦华C语言18.31.c(13) : warning C4244: = : conversion from double to float , possible

6、 loss of data18.31.obj - 0 error(s), 0 warning(s)修改后运行结果:修改后源程序#includevoid main()int a,b;float d,e;char c1,c2;double f,g;long m,n;unsigned int p,q;scanf(%d,%d,%c,%c,%f,%f,%lf,%lf,%ld,%ld,%u,%u,&a,&b,&c1,&c2,&d,&e, &f,&g,&m,&n,&p,&q);printf(a=%d,b=%dnc1=%c,c2=%cnd=%6.2f,e=%6.2fn,a,b,c1,c2,d,e);print

7、f(f=%15.6f,g=%15.12fnm=%ld,n=%ldnp=%u,q=%un,f,g,m,n,p,q);编译结果:-Configuration: 18.311 - Win32 Debug-Compiling.18.311.c18.311.obj - 0 error(s), 0 warning(s)修改后运行结果修改后源程序#includevoid main()int a,b;float d,e;char c1,c2;double f,g;long m,n;unsigned int p,q;scanf(%d,%d,%c,%c,%f,%f,%lf,%lf,%ld,%ld,%u,%u,&a

8、,&b,&c1,&c2,&d,&e, &f,&g,&m,&n,&p,&q);printf(a=%d,b=%dnc1=%c,c2=%cnd=%15.6f,e=%15.12fn,a,b,c1,c2,d,e);printf(f=%f,g=%fnm=%d,n=%dnp=%d,q=%dn,f,g,m,n,p,q);编译结果:-Configuration: 18.311 - Win32 Debug-Compiling.18.311.c18.311.obj - 0 error(s), 0 warning(s)修改后运行结果修改后源程序#includevoid main()int a,b;float d,e;

9、char c1,c2;double f,g;long m,n;unsigned int p,q;scanf(%d,%d,%c,%c,%f,%f,%lf,%lf,%ld,%ld,%u,%u,&a,&b,&c1,&c2,&d,&e, &f,&g,&m,&n,&p,&q);printf(a=%d,b=%dnc1=%c,c2=%cnd=%15.6f,e=%15.12fn,a,b,c1,c2,d,e);printf(f=%f,g=%fnm=%d,n=%dnp=%o,q=%on,f,g,m,n,p,q);编译结果:-Configuration: 18.311 - Win32 Debug-Compiling

10、.18.311.c18.311.obj - 0 error(s), 0 warning(s)修改后运行结果修改后源程序#includevoid main()int a,b;float d,e;char c1,c2;double f,g;long m,n;unsigned int p,q;scanf(%d,%d,%c,%c,%f,%f,%f,%f,%d,%d,%u,%u,&a,&b,&c1,&c2,&d,&e, &f,&g,&m,&n,&p,&q);printf(a=%d,b=%dnc1=%c,c2=%cnd=%15.6f,e=%15.12fn,a,b,c1,c2,d,e);printf(f=%

11、f,g=%fnm=%d,n=%dnp=%o,q=%on,f,g,m,n,p,q);编译结果:-Configuration: 18.311 - Win32 Debug-Linking.18.311.exe - 0 error(s), 0 warning(s)修改后运行结果(2) 源程序#includevoid main()float h,r,l,s,sq,vq,vz;float pi=3.;printf(请输入底面半径r，圆柱高h:);scanf(%f,%f,&r,&h);l=2*pi*r;s=r*r*pi;sq=4*pi*r*r;vq=4.0/3.0*pi*r*r*r;vz=pi*r*r*h;

12、printf(圆周长为： l=%6.2fn,l);printf(圆面积为： s=%6.2fn,s);printf(圆球表面积为： sq=%6.2fn,sq);printf(圆球体积为： vq=%6.2fn,vq);printf(圆柱体积为： vz=%6.2fn,vz);编译结果:-Configuration: 18.4 - Win32 Debug-Compiling.18.4.cC:Documents and SettingsAdministrator物理学院张锦华C语言18.4.c(4) : warning C4305: initializing : truncation from const double to float C:Documents and SettingsAdministrator物理学院张锦华C语言18.4.c(10) : warning C4244: = : conversion from double to float , possible loss of data18.4.obj - 0 error(s), 0 warning(s)运行结果: