例子

\begin{align} \label{minPC}
P_{C}:&\min \quad U(\boldsymbol{C}^{VC_{1}},\boldsymbol{C}^{VC_{2}},\boldsymbol{C}^{RC}) \\
&s.t.\nonumber\\ &\sum_{l=1}^{L}c_{i,l}^{VC_{1}}\leq S^V , c_{i,l}^{VC_{1}}\in \left \{0,1\right \}, i=1,2,\cdots N_{VC_{1}}, \tag{16a}\\
     &\sum_{l=1}^{L}c_{i,l}^{VC_{2}}\leq S^V , c_{i,l}^{VC_{2}}\in \left \{0,1\right \}, i=1,2,\cdots N_{VC_{2}}, \tag{16b}\\
     &\sum_{l=1}^{L}c_{m,l}^{RC}\leq S^R , c_{m,l}^{RC}\in \left \{0,1\right \}, m=1,2,\cdots N_{RC},\tag{16c}\\
     &l=1,2,\cdots L.\tag{16d}
\end{align}

效果