我试图修复我的代码，它运行顺畅，但它只读取元素的第一个字母，所以像U，C，K，N，O。运行良好，没有任何问题
但是在尝试进入时：Fe，Cl，Uuu，Pd，Rh。它只读取第一个字母并给出了错误的答案。
所以我试着不修复它，所以它读取所有元素没有问题。
#include <iostream>
#include <Windows.h>
int main()
{
using namespace std;
char Index;
cout<<"please type an Element to see its Atomic number"<<endl;
cin>>Index;
switch (Index)
{
case 'H':
cout<<"tAtomic Number is 2"<<endl;
break;
case 'Li':
cout<<"The full name is (Lithium) , The Atomic number is 3"<<endl;
break;
case 'Ac':
cout<<"The full name is ( Actinium )The Atomic number is 89"<<endl;
break;
case 'Al':
cout<<"The full name is ( Aluminum )The Atomic number is 13"<<endl;
break;
case 'Am':
cout<<"The full name is ( Americium )The Atomic number is 95"<<endl;
break;
case 'Sb':
cout<<"The full name is ( Antimony )The Atomic number is 51"<<endl;
break;
case 'Ar':
cout<<"The full name is ( Argon )The Atomic number is 18"<<endl;
break;
case 'As':
cout<<"The full name is ( Arsenic )The Atomic number is 33"<<endl;
break;
case 'At':
cout<<"The full name is ( Astatine )The Atomic number is 85"<<endl;
break;
case 'Ba':
cout<<"The full name is ( Barium )The Atomic number is 56"<<endl;
break;
case 'Bk':
cout<<"The full name is ( Berkelium )The Atomic number is 97"<<endl;
break;
case 'Be':
cout<<"The full name is ( Beryllium )The Atomic number is 4"<<endl;
break;
case 'Bi':
cout<<"The full name is ( Bismuth )The Atomic number is 83"<<endl;
break;
case 'Bh':
cout<<"The full name is ( Bohrium ) The Atomic number is 107"<<endl;
break;
case 'B':
cout<<"The full name is ( Boron )The Atomic number is 5"<<endl;
break;
case 'Br':
cout<<"The full name is ( Bromine )The Atomic number is 35"<<endl;
break;
case 'Cd':
cout<<"The full name is ( Cadmium )The Atomic number is 48"<<endl;
break;
case 'Ca':
cout<<"The full name is ( Calcium )The Atomic number is 20"<<endl;
break;
case 'Cf':
cout<<"The full name is ( Californium )The Atomic number is 98"<<endl;
break;
case 'C':
cout<<"The full name is ( Carbon )The Atomic number is 6"<<endl;
break;
case 'Ce':
cout<<"The full name is ( Cerium )The Atomic number is 58"<<endl;
break;
case 'Cs':
cout<<"The full name is ( Cesium )The Atomic number is 55"<<endl;
break;
case 'Cl':
cout<<"The full name is ( Chlorine )The Atomic number is 17"<<endl;
break;
case 'Cr':
cout<<"The full name is ( Chromium )The Atomic number is 24"<<endl;
break;
case 'Co':
cout<<"The full name is ( Cobalt )The Atomic number is 27"<<endl;
break;
case 'Cu':
cout<<"The full name is ( Copper )The Atomic number is 29"<<endl;
break;
case 'Cm':
cout<<"The full name is ( Curium )The Atomic number is 96"<<endl;
break;
case 'Ds':
cout<<"The full name is ( Darmstadtium )The Atomic number is 110"<<endl;
break;
case 'Db':
cout<<"The full name is ( Dubnium )The Atomic number is 105"<<endl;
break;
case 'Dy':
cout<<"The full name is ( Dysprosium )The Atomic number is 66"<<endl;
break;
case 'Es':
cout<<"The full name is ( Einsteinium )The Atomic number is 99"<<endl;
break;
case 'Er':
cout<<"The full name is ( Erbium )The Atomic number is 68"<<endl;
break;
case 'Eu':
cout<<"The full name is ( Europium )The Atomic number is 63"<<endl;
break;
case 'Fm':
cout<<"The full name is ( Fermium )The Atomic number is 100"<<endl;
break;
case 'F':
cout<<"The full name is ( Fluorine )The Atomic number is 9"<<endl;
break;
case 'Fr':
cout<<"The full name is ( Francium )The Atomic number is 87"<<endl;
break;
case 'Gd':
cout<<"The full name is ( Gadolinium )The Atomic number is 64"<<endl;
break;
case 'Ga':
cout<<"The full name is ( Gallium )The Atomic number is 31"<<endl;
break;
case 'Ge':
cout<<"The full name is ( Germanium )The Atomic number is 32"<<endl;
break;
case 'Au':
cout<<"The full name is ( Gold )The Atomic number is 79"<<endl;
break;
case 'Hf':
cout<<"The full name is ( Hafnium )The Atomic number is 72"<<endl;
break;
case 'Hs':
cout<<"The full name is ( Hassium )The Atomic number is 108"<<endl;
break;
case 'He':
cout<<"The full name is ( Helium )The Atomic number is 2"<<endl;
break;
case 'Ho':
cout<<"The full name is ( Holmium )The Atomic number is 67"<<endl;
break;
case 'In':
cout<<"The full name is ( Indium )The Atomic number is 49"<<endl;
break;
case 'I':
cout<<"The full name is ( Iodine )The Atomic number is 53"<<endl;
break;
case 'Ir':
cout<<"The full name is ( Iridium )The Atomic number is 77"<<endl;
break;
case 'Fe':
cout<<"The full name is ( Iron )The Atomic number is 26"<<endl;
break;
case 'Kr':
cout<<"The full name is ( Krypton )The Atomic number is 36"<<endl;
break;
case 'La':
cout<<"The full name is ( Lanthanum )The Atomic number is 57"<<endl;
break;
case 'Lr':
cout<<"The full name is ( Lawrencium )The Atomic number is 103"<<endl;
break;
case 'Pb':
cout<<"The full name is ( Lead )The Atomic number is 82"<<endl;
break;
case 'Lu':
cout<<"The full name is ( Lutetium )The Atomic number is 71"<<endl;
break;
case 'Mg':
cout<<"The full name is ( Magnesium )The Atomic number is 12"<<endl;
break;
case 'Mn':
cout<<"The full name is ( Manganese )The Atomic number is 25"<<endl;
break;
case 'Mt':
cout<<"The full name is ( Meitnerium )The Atomic number is 109"<<endl;
break;
case 'Md':
cout<<"The full name is ( Mendelevium )The Atomic number is 101"<<endl;
break;
case 'Hg':
cout<<"The full name is ( Mercury )The Atomic number is 80"<<endl;
break;
case 'Mo':
cout<<"The full name is ( Molybdenum )The Atomic number is 42"<<endl;
break;
case 'Ne':
cout<<"The full name is ( Neon )The Atomic number is 77"<<endl;
break;
case 'Nd':
cout<<"The full name is ( Neodymium )The Atomic number is 60"<<endl;
break;
case 'Np':
cout<<"The full name is ( Neptunium )The Atomic number is 93"<<endl;
break;
case 'Ni':
cout<<"The full name is ( Nickel )The Atomic number is 28"<<endl;
break;
case 'Nb':
cout<<"The full name is ( Niobium )The Atomic number is 41"<<endl;
break;
case 'N':
cout<<"The full name is ( Nitrogen )The Atomic number is 7"<<endl;
break;
case 'No':
cout<<"The full name is ( Nobelium )The Atomic number is 102"<<endl;
break;
case 'Os':
cout<<"The full name is ( Osmium )The Atomic number is 76"<<endl;
break;
case 'O':
cout<<"The full name is ( Oxygen )The Atomic number is 8"<<endl;
break;
case 'Pd':
cout<<"The full name is ( Palladium )The Atomic number is 46"<<endl;
break;
case 'P':
cout<<"The full name is ( Phosphorus )The Atomic number is 15"<<endl;
break;
case 'Pt':
cout<<"The full name is ( Platinum )The Atomic number is 78"<<endl;
break;
case 'Pu':
cout<<"The full name is ( Plutonium )The Atomic number is 94"<<endl;
break;
case 'Po':
cout<<"The full name is ( Polonium )The Atomic number is 84"<<endl;
break;
case 'K':
cout<<"The full name is ( Potassium )The Atomic number is 19"<<endl;
break;
case 'Pr':
cout<<"The full name is ( Praseodymium )The Atomic number is 59"<<endl;
break;
case 'Pm':
cout<<"The full name is ( Promethium )The Atomic number is 61"<<endl;
break;
case 'Pa':
cout<<"The full name is ( Protactinium )The Atomic number is 91"<<endl;
break;
case 'Ra':
cout<<"The full name is ( Radium )The Atomic number is 88"<<endl;
break;
case 'Rn':
cout<<"The full name is ( Radon )The Atomic number is 86"<<endl;
break;
case 'Re':
cout<<"The full name is ( Rhenium )The Atomic number is 75"<<endl;
break;
case 'Rh':
cout<<"The full name is ( Rhodium )The Atomic number is 45"<<endl;
break;
case 'Rg':
cout<<"The full name is ( Roentgenium )The Atomic number is 111"<<endl;
break;
case 'Rb':
cout<<"The full name is ( Rubidium )The Atomic number is 37"<<endl;
break;
case 'Ru':
cout<<"The full name is ( Ruthenium )The Atomic number is 44"<<endl;
break;
case 'Rf':
cout<<"The full name is ( Rutherfordium )The Atomic number is 104"<<endl;
break;
case 'Sm':
cout<<"The full name is ( Samarium )The Atomic number is 62"<<endl;
break;
case 'Sc':
cout<<"The full name is ( Scandium )The Atomic number is 21"<<endl;
break;
case 'Sg':
cout<<"The full name is ( Seaborgium )The Atomic number is 106"<<endl;
break;
case 'Se':
cout<<"The full name is ( Selenium )The Atomic number is 34"<<endl;
break;
case 'Si':
cout<<"The full name is ( Silicon )The Atomic number is 14"<<endl;
case 'Ag':
cout<<"The full name is ( Silver )The Atomic number is 47"<<endl;
break;
case 'Na':
cout<<"The full name is ( Sodium )The Atomic number is 11"<<endl;
break;
case 'Sr':
cout<<"The full name is ( Strontium )The Atomic number is 38"<<endl;
break;
case 'S':
cout<<"The full name is ( Sulfur )The Atomic number is 16"<<endl;
break;
case 'Ta':
cout<<"The full name is ( Tantalum )The Atomic number is 73"<<endl;
break;
case 'Tc':
cout<<"The full name is ( Technetium )The Atomic number is 43"<<endl;
break;
case 'Te':
cout<<"The full name is ( Tellurium )The Atomic number is 52"<<endl;
break;
case 'Tb':
cout<<"The full name is ( Terbium )The Atomic number is 65"<<endl;
break;
case 'Tl':
cout<<"The full name is ( Thallium )The Atomic number is 81"<<endl;
break;
case 'Th':
cout<<"The full name is ( Thorium )The Atomic number is 90"<<endl;
break;
case 'Tm':
cout<<"The full name is ( Thulium )The Atomic number is 69"<<endl;
break;
case 'Sn':
cout<<"The full name is ( Tin )The Atomic number is 50"<<endl;
break;
case 'Ti':
cout<<"The full name is ( Titanium )The Atomic number is 22"<<endl;
break;
case 'W':
cout<<"The full name is ( Tungsten )The Atomic number is 74"<<endl;
break;
case 'Uub':
cout<<"The full name is ( Ununbium )The Atomic number is 112"<<endl;
break;
case 'Uuh':
cout<<"The full name is ( Ununhexium )The Atomic number is 116"<<endl;
break;
case 'Uuo':
cout<<"The full name is ( Ununoctium )The Atomic number is 118"<<endl;
break;
case 'Uup':
cout<<"The full name is ( Ununpentium )The Atomic number is 115"<<endl;
break;
case 'Uuq':
cout<<"The full name is ( Ununquadium )The Atomic number is 114"<<endl;
break;
case 'Uus':
cout<<"The full name is ( Ununseptium )The Atomic number is 117"<<endl;
break;
case 'Uut':
cout<<"The full name is ( Ununtrium )The Atomic number is 113"<<endl;
break;
case 'Uuu':
cout<<"The full name is ( Ununium )The Atomic number is 111"<<endl;
break;
case 'U':
cout<<"The full name is ( Uranium )The Atomic number is 92"<<endl;
break;
case 'V':
cout<<"The full name is ( Vanadium )The Atomic number is 23"<<endl;
break;
case 'Xe':
cout<<"The full name is ( Xenon )The Atomic number is 54"<<endl;
break;
case 'Yb':
cout<<"The full name is ( Ytterbium )The Atomic number is 70"<<endl;
break;
case 'Y':
cout<<"The full name is ( Yttrium )The Atomic number is 39"<<endl;
break;
case 'Zn':
cout<<"The full name is ( Zinc )The Atomic number is 30"<<endl;
break;
case 'Zr':
cout<<"The full name is ( Zirconium )The Atomic number is 40"<<endl;
break;
default:
cout<<"There is no element with that Symbol !! , please close the program and try again"<<endl;
return 0;
Sleep (5000);
}
}
答案 0 :(得分：1)
您可以使用std::map，因为交换机案例无法处理std::string：
const std::map<std::string, std::string> m = {
{"H", tAtomic Number is 2"},
{"Li", "The full name is (Lithium) , The Atomic number is 3"},
{"Ac", "The full name is ( Actinium )The Atomic number is 89"},
// ...
};
std::cout << "please type an Element to see its Atomic number" << std::endl;
std::string input;
std::cin >> input;
const auto it = m.find(input);
if (it == m.end()) {
std::cout << "There is no element with that Symbol !!"
"Please close the program and try again" << std::endl;
} else {
std::cout << it->second << std::endl;
}